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Finding the Fourth Proportional to 266,098.40, 399,184.06 and 88,586.90

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Solution

The fourth proportional to 266,098.40, 399,184.06 and 88,586.90 is: 132,892.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,098.40 : 399,184.06 = 88,586.90 : x
  2. Step 2: Convert to fraction form
    266,098.40/399,184.06 = 88,586.90/x
  3. Step 3: Cross multiply
    266,098.40x = 399,184.06 × 88,586.90
  4. Step 4: Simplify right side
    266,098.40x = 35,362,478,404.81
  5. Step 5: Solve for x
    x = 35,362,478,404.81/266,098.40
  6. Step 6: Final answer
    x = 132,892.49

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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.