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Finding the Fourth Proportional to 342,069.01, 513,103.52 and 105,411.69

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Solution

The fourth proportional to 342,069.01, 513,103.52 and 105,411.69 is: 158,117.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,069.01 : 513,103.52 = 105,411.69 : x
  2. Step 2: Convert to fraction form
    342,069.01/513,103.52 = 105,411.69/x
  3. Step 3: Cross multiply
    342,069.01x = 513,103.52 × 105,411.69
  4. Step 4: Simplify right side
    342,069.01x = 54,087,109,654.41
  5. Step 5: Solve for x
    x = 54,087,109,654.41/342,069.01
  6. Step 6: Final answer
    x = 158,117.54

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.