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Finding the Fourth Proportional to 88,908.70, 133,438.65 and 36,355.90

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Solution

The fourth proportional to 88,908.70, 133,438.65 and 36,355.90 is: 54,564.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,908.70 : 133,438.65 = 36,355.90 : x
  2. Step 2: Convert to fraction form
    88,908.70/133,438.65 = 36,355.90/x
  3. Step 3: Cross multiply
    88,908.70x = 133,438.65 × 36,355.90
  4. Step 4: Simplify right side
    88,908.70x = 4,851,282,215.54
  5. Step 5: Solve for x
    x = 4,851,282,215.54/88,908.70
  6. Step 6: Final answer
    x = 54,564.76

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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.