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Finding the Fourth Proportional to 342,700.80, 513,746.05 and 162,675.17

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Solution

The fourth proportional to 342,700.80, 513,746.05 and 162,675.17 is: 243,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,700.80 : 513,746.05 = 162,675.17 : x
  2. Step 2: Convert to fraction form
    342,700.80/513,746.05 = 162,675.17/x
  3. Step 3: Cross multiply
    342,700.80x = 513,746.05 × 162,675.17
  4. Step 4: Simplify right side
    342,700.80x = 83,573,726,020.58
  5. Step 5: Solve for x
    x = 83,573,726,020.58/342,700.80
  6. Step 6: Final answer
    x = 243,867.90

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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.