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Finding the Fourth Proportional to 316,735.17, 475,132.92 and 89,030.20

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Solution

The fourth proportional to 316,735.17, 475,132.92 and 89,030.20 is: 133,553.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,735.17 : 475,132.92 = 89,030.20 : x
  2. Step 2: Convert to fraction form
    316,735.17/475,132.92 = 89,030.20/x
  3. Step 3: Cross multiply
    316,735.17x = 475,132.92 × 89,030.20
  4. Step 4: Simplify right side
    316,735.17x = 42,301,178,894.18
  5. Step 5: Solve for x
    x = 42,301,178,894.18/316,735.17
  6. Step 6: Final answer
    x = 133,553.78

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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.