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Finding the Fourth Proportional to 107,626.40, 161,497.20 and 48,471.20

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Solution

The fourth proportional to 107,626.40, 161,497.20 and 48,471.20 is: 72,732.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,626.40 : 161,497.20 = 48,471.20 : x
  2. Step 2: Convert to fraction form
    107,626.40/161,497.20 = 48,471.20/x
  3. Step 3: Cross multiply
    107,626.40x = 161,497.20 × 48,471.20
  4. Step 4: Simplify right side
    107,626.40x = 7,827,963,080.64
  5. Step 5: Solve for x
    x = 7,827,963,080.64/107,626.40
  6. Step 6: Final answer
    x = 72,732.74

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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.