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Finding the Fourth Proportional to 356,253.06, 534,330.15 and 89,997.18

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Solution

The fourth proportional to 356,253.06, 534,330.15 and 89,997.18 is: 134,983.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,253.06 : 534,330.15 = 89,997.18 : x
  2. Step 2: Convert to fraction form
    356,253.06/534,330.15 = 89,997.18/x
  3. Step 3: Cross multiply
    356,253.06x = 534,330.15 × 89,997.18
  4. Step 4: Simplify right side
    356,253.06x = 48,088,206,688.98
  5. Step 5: Solve for x
    x = 48,088,206,688.98/356,253.06
  6. Step 6: Final answer
    x = 134,983.28

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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.