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Finding the Fourth Proportional to 99,791.46, 149,681.52 and 60,337.98

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Solution

The fourth proportional to 99,791.46, 149,681.52 and 60,337.98 is: 90,503.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,791.46 : 149,681.52 = 60,337.98 : x
  2. Step 2: Convert to fraction form
    99,791.46/149,681.52 = 60,337.98/x
  3. Step 3: Cross multiply
    99,791.46x = 149,681.52 × 60,337.98
  4. Step 4: Simplify right side
    99,791.46x = 9,031,480,560.13
  5. Step 5: Solve for x
    x = 9,031,480,560.13/99,791.46
  6. Step 6: Final answer
    x = 90,503.54

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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.