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Finding the Fourth Proportional to 317,281.38, 475,937.88 and 104,070.78

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Solution

The fourth proportional to 317,281.38, 475,937.88 and 104,070.78 is: 156,111.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,281.38 : 475,937.88 = 104,070.78 : x
  2. Step 2: Convert to fraction form
    317,281.38/475,937.88 = 104,070.78/x
  3. Step 3: Cross multiply
    317,281.38x = 475,937.88 × 104,070.78
  4. Step 4: Simplify right side
    317,281.38x = 49,531,226,403.15
  5. Step 5: Solve for x
    x = 49,531,226,403.15/317,281.38
  6. Step 6: Final answer
    x = 156,111.36

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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.