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Finding the Fourth Proportional to 88,909.93, 133,469.08 and 70,202.57

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Solution

The fourth proportional to 88,909.93, 133,469.08 and 70,202.57 is: 105,386.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,909.93 : 133,469.08 = 70,202.57 : x
  2. Step 2: Convert to fraction form
    88,909.93/133,469.08 = 70,202.57/x
  3. Step 3: Cross multiply
    88,909.93x = 133,469.08 × 70,202.57
  4. Step 4: Simplify right side
    88,909.93x = 9,369,872,589.70
  5. Step 5: Solve for x
    x = 9,369,872,589.70/88,909.93
  6. Step 6: Final answer
    x = 105,386.12

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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.