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Finding the Fourth Proportional to 99,476.90, 137,273.92 and 54,153.94

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Solution

The fourth proportional to 99,476.90, 137,273.92 and 54,153.94 is: 74,730.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,476.90 : 137,273.92 = 54,153.94 : x
  2. Step 2: Convert to fraction form
    99,476.90/137,273.92 = 54,153.94/x
  3. Step 3: Cross multiply
    99,476.90x = 137,273.92 × 54,153.94
  4. Step 4: Simplify right side
    99,476.90x = 7,433,923,356.48
  5. Step 5: Solve for x
    x = 7,433,923,356.48/99,476.90
  6. Step 6: Final answer
    x = 74,730.15

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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.