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Finding the Fourth Proportional to 99,627.59, 137,484.30 and 54,305.97

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Solution

The fourth proportional to 99,627.59, 137,484.30 and 54,305.97 is: 74,941.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,627.59 : 137,484.30 = 54,305.97 : x
  2. Step 2: Convert to fraction form
    99,627.59/137,484.30 = 54,305.97/x
  3. Step 3: Cross multiply
    99,627.59x = 137,484.30 × 54,305.97
  4. Step 4: Simplify right side
    99,627.59x = 7,466,217,959.35
  5. Step 5: Solve for x
    x = 7,466,217,959.35/99,627.59
  6. Step 6: Final answer
    x = 74,941.27

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1.5x scale

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.