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Finding the Fourth Proportional to 127,880.52, 176,475.08 and 71,295.52

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Solution

The fourth proportional to 127,880.52, 176,475.08 and 71,295.52 is: 98,387.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,880.52 : 176,475.08 = 71,295.52 : x
  2. Step 2: Convert to fraction form
    127,880.52/176,475.08 = 71,295.52/x
  3. Step 3: Cross multiply
    127,880.52x = 176,475.08 × 71,295.52
  4. Step 4: Simplify right side
    127,880.52x = 12,581,882,595.64
  5. Step 5: Solve for x
    x = 12,581,882,595.64/127,880.52
  6. Step 6: Final answer
    x = 98,387.80

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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.