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Finding the Fourth Proportional to 52,316.70, 78,345.45 and 41,948.70

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Solution

The fourth proportional to 52,316.70, 78,345.45 and 41,948.70 is: 62,819.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,316.70 : 78,345.45 = 41,948.70 : x
  2. Step 2: Convert to fraction form
    52,316.70/78,345.45 = 41,948.70/x
  3. Step 3: Cross multiply
    52,316.70x = 78,345.45 × 41,948.70
  4. Step 4: Simplify right side
    52,316.70x = 3,286,489,778.42
  5. Step 5: Solve for x
    x = 3,286,489,778.42/52,316.70
  6. Step 6: Final answer
    x = 62,819.13

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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.