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Finding the Fourth Proportional to 317,070.28, 475,070.52 and 156,932.68

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Solution

The fourth proportional to 317,070.28, 475,070.52 and 156,932.68 is: 235,134.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,070.28 : 475,070.52 = 156,932.68 : x
  2. Step 2: Convert to fraction form
    317,070.28/475,070.52 = 156,932.68/x
  3. Step 3: Cross multiply
    317,070.28x = 475,070.52 × 156,932.68
  4. Step 4: Simplify right side
    317,070.28x = 74,554,089,892.59
  5. Step 5: Solve for x
    x = 74,554,089,892.59/317,070.28
  6. Step 6: Final answer
    x = 235,134.27

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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.