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Finding the Fourth Proportional to 99,637.60, 149,254.80 and 62,082.40

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Solution

The fourth proportional to 99,637.60, 149,254.80 and 62,082.40 is: 92,997.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,637.60 : 149,254.80 = 62,082.40 : x
  2. Step 2: Convert to fraction form
    99,637.60/149,254.80 = 62,082.40/x
  3. Step 3: Cross multiply
    99,637.60x = 149,254.80 × 62,082.40
  4. Step 4: Simplify right side
    99,637.60x = 9,266,096,195.52
  5. Step 5: Solve for x
    x = 9,266,096,195.52/99,637.60
  6. Step 6: Final answer
    x = 92,997.99

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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.