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Finding the Fourth Proportional to 99,607.04, 137,404.32 and 63,758.48

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Solution

The fourth proportional to 99,607.04, 137,404.32 and 63,758.48 is: 87,952.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,607.04 : 137,404.32 = 63,758.48 : x
  2. Step 2: Convert to fraction form
    99,607.04/137,404.32 = 63,758.48/x
  3. Step 3: Cross multiply
    99,607.04x = 137,404.32 × 63,758.48
  4. Step 4: Simplify right side
    99,607.04x = 8,760,690,588.63
  5. Step 5: Solve for x
    x = 8,760,690,588.63/99,607.04
  6. Step 6: Final answer
    x = 87,952.52

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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.