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Finding the Fourth Proportional to 99,472.66, 137,275.56 and 54,152.55

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Solution

The fourth proportional to 99,472.66, 137,275.56 and 54,152.55 is: 74,732.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,472.66 : 137,275.56 = 54,152.55 : x
  2. Step 2: Convert to fraction form
    99,472.66/137,275.56 = 54,152.55/x
  3. Step 3: Cross multiply
    99,472.66x = 137,275.56 × 54,152.55
  4. Step 4: Simplify right side
    99,472.66x = 7,433,821,626.68
  5. Step 5: Solve for x
    x = 7,433,821,626.68/99,472.66
  6. Step 6: Final answer
    x = 74,732.31

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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.