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Finding the Fourth Proportional to 356,129.71, 534,192.52 and 89,889.12

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Solution

The fourth proportional to 356,129.71, 534,192.52 and 89,889.12 is: 134,833.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,129.71 : 534,192.52 = 89,889.12 : x
  2. Step 2: Convert to fraction form
    356,129.71/534,192.52 = 89,889.12/x
  3. Step 3: Cross multiply
    356,129.71x = 534,192.52 × 89,889.12
  4. Step 4: Simplify right side
    356,129.71x = 48,018,093,974.79
  5. Step 5: Solve for x
    x = 48,018,093,974.79/356,129.71
  6. Step 6: Final answer
    x = 134,833.16

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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.