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Finding the Fourth Proportional to 276,637.28, 414,807.42 and 87,062.18

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Solution

The fourth proportional to 276,637.28, 414,807.42 and 87,062.18 is: 130,546.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,637.28 : 414,807.42 = 87,062.18 : x
  2. Step 2: Convert to fraction form
    276,637.28/414,807.42 = 87,062.18/x
  3. Step 3: Cross multiply
    276,637.28x = 414,807.42 × 87,062.18
  4. Step 4: Simplify right side
    276,637.28x = 36,114,038,265.38
  5. Step 5: Solve for x
    x = 36,114,038,265.38/276,637.28
  6. Step 6: Final answer
    x = 130,546.53

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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.