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Finding the Fourth Proportional to 99,614.45, 137,468.03 and 54,292.46

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Solution

The fourth proportional to 99,614.45, 137,468.03 and 54,292.46 is: 74,923.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,614.45 : 137,468.03 = 54,292.46 : x
  2. Step 2: Convert to fraction form
    99,614.45/137,468.03 = 54,292.46/x
  3. Step 3: Cross multiply
    99,614.45x = 137,468.03 × 54,292.46
  4. Step 4: Simplify right side
    99,614.45x = 7,463,476,561.25
  5. Step 5: Solve for x
    x = 7,463,476,561.25/99,614.45
  6. Step 6: Final answer
    x = 74,923.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.