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Finding the Fourth Proportional to 457,701.60, 686,541.60 and 125,277.60

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Solution

The fourth proportional to 457,701.60, 686,541.60 and 125,277.60 is: 187,913.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,701.60 : 686,541.60 = 125,277.60 : x
  2. Step 2: Convert to fraction form
    457,701.60/686,541.60 = 125,277.60/x
  3. Step 3: Cross multiply
    457,701.60x = 686,541.60 × 125,277.60
  4. Step 4: Simplify right side
    457,701.60x = 86,008,283,948.16
  5. Step 5: Solve for x
    x = 86,008,283,948.16/457,701.60
  6. Step 6: Final answer
    x = 187,913.44

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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.