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Finding the Fourth Proportional to 440,153.87, 660,325.53 and 136,541.98

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Solution

The fourth proportional to 440,153.87, 660,325.53 and 136,541.98 is: 204,842.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,153.87 : 660,325.53 = 136,541.98 : x
  2. Step 2: Convert to fraction form
    440,153.87/660,325.53 = 136,541.98/x
  3. Step 3: Cross multiply
    440,153.87x = 660,325.53 × 136,541.98
  4. Step 4: Simplify right side
    440,153.87x = 90,162,155,310.75
  5. Step 5: Solve for x
    x = 90,162,155,310.75/440,153.87
  6. Step 6: Final answer
    x = 204,842.36

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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.