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Finding the Fourth Proportional to 133,218.60, 200,046.60 and 89,041.20

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Solution

The fourth proportional to 133,218.60, 200,046.60 and 89,041.20 is: 133,707.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,218.60 : 200,046.60 = 89,041.20 : x
  2. Step 2: Convert to fraction form
    133,218.60/200,046.60 = 89,041.20/x
  3. Step 3: Cross multiply
    133,218.60x = 200,046.60 × 89,041.20
  4. Step 4: Simplify right side
    133,218.60x = 17,812,389,319.92
  5. Step 5: Solve for x
    x = 17,812,389,319.92/133,218.60
  6. Step 6: Final answer
    x = 133,707.98

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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.