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Finding the Fourth Proportional to 316,733.17, 475,129.92 and 89,028.20

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Solution

The fourth proportional to 316,733.17, 475,129.92 and 89,028.20 is: 133,550.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,733.17 : 475,129.92 = 89,028.20 : x
  2. Step 2: Convert to fraction form
    316,733.17/475,129.92 = 89,028.20/x
  3. Step 3: Cross multiply
    316,733.17x = 475,129.92 × 89,028.20
  4. Step 4: Simplify right side
    316,733.17x = 42,299,959,168.09
  5. Step 5: Solve for x
    x = 42,299,959,168.09/316,733.17
  6. Step 6: Final answer
    x = 133,550.77

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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.