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Finding the Fourth Proportional to 66,541.40, 99,812.10 and 40,232.60

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Solution

The fourth proportional to 66,541.40, 99,812.10 and 40,232.60 is: 60,348.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,541.40 : 99,812.10 = 40,232.60 : x
  2. Step 2: Convert to fraction form
    66,541.40/99,812.10 = 40,232.60/x
  3. Step 3: Cross multiply
    66,541.40x = 99,812.10 × 40,232.60
  4. Step 4: Simplify right side
    66,541.40x = 4,015,700,294.46
  5. Step 5: Solve for x
    x = 4,015,700,294.46/66,541.40
  6. Step 6: Final answer
    x = 60,348.90

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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.