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Finding the Fourth Proportional to 99,304.70, 148,859.85 and 40,061.30

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Solution

The fourth proportional to 99,304.70, 148,859.85 and 40,061.30 is: 60,052.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,304.70 : 148,859.85 = 40,061.30 : x
  2. Step 2: Convert to fraction form
    99,304.70/148,859.85 = 40,061.30/x
  3. Step 3: Cross multiply
    99,304.70x = 148,859.85 × 40,061.30
  4. Step 4: Simplify right side
    99,304.70x = 5,963,519,108.81
  5. Step 5: Solve for x
    x = 5,963,519,108.81/99,304.70
  6. Step 6: Final answer
    x = 60,052.74

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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.