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Finding the Fourth Proportional to 99,574.52, 137,414.42 and 54,254.64

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Solution

The fourth proportional to 99,574.52, 137,414.42 and 54,254.64 is: 74,872.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,574.52 : 137,414.42 = 54,254.64 : x
  2. Step 2: Convert to fraction form
    99,574.52/137,414.42 = 54,254.64/x
  3. Step 3: Cross multiply
    99,574.52x = 137,414.42 × 54,254.64
  4. Step 4: Simplify right side
    99,574.52x = 7,455,369,887.91
  5. Step 5: Solve for x
    x = 7,455,369,887.91/99,574.52
  6. Step 6: Final answer
    x = 74,872.27

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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.