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Finding the Fourth Proportional to 88,695.40, 133,043.10 and 63,909.40

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Solution

The fourth proportional to 88,695.40, 133,043.10 and 63,909.40 is: 95,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,695.40 : 133,043.10 = 63,909.40 : x
  2. Step 2: Convert to fraction form
    88,695.40/133,043.10 = 63,909.40/x
  3. Step 3: Cross multiply
    88,695.40x = 133,043.10 × 63,909.40
  4. Step 4: Simplify right side
    88,695.40x = 8,502,704,695.14
  5. Step 5: Solve for x
    x = 8,502,704,695.14/88,695.40
  6. Step 6: Final answer
    x = 95,864.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.