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Finding the Fourth Proportional to 127,452.64, 175,871.28 and 70,854.88

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Solution

The fourth proportional to 127,452.64, 175,871.28 and 70,854.88 is: 97,772.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,452.64 : 175,871.28 = 70,854.88 : x
  2. Step 2: Convert to fraction form
    127,452.64/175,871.28 = 70,854.88/x
  3. Step 3: Cross multiply
    127,452.64x = 175,871.28 × 70,854.88
  4. Step 4: Simplify right side
    127,452.64x = 12,461,338,439.85
  5. Step 5: Solve for x
    x = 12,461,338,439.85/127,452.64
  6. Step 6: Final answer
    x = 97,772.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.