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Finding the Fourth Proportional to 99,863.16, 137,531.12 and 99,551.77

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Solution

The fourth proportional to 99,863.16, 137,531.12 and 99,551.77 is: 137,102.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,863.16 : 137,531.12 = 99,551.77 : x
  2. Step 2: Convert to fraction form
    99,863.16/137,531.12 = 99,551.77/x
  3. Step 3: Cross multiply
    99,863.16x = 137,531.12 × 99,551.77
  4. Step 4: Simplify right side
    99,863.16x = 13,691,466,262.11
  5. Step 5: Solve for x
    x = 13,691,466,262.11/99,863.16
  6. Step 6: Final answer
    x = 137,102.27

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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.