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Finding the Fourth Proportional to 127,646.87, 176,141.88 and 75,250.49

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Solution

The fourth proportional to 127,646.87, 176,141.88 and 75,250.49 is: 103,839.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,646.87 : 176,141.88 = 75,250.49 : x
  2. Step 2: Convert to fraction form
    127,646.87/176,141.88 = 75,250.49/x
  3. Step 3: Cross multiply
    127,646.87x = 176,141.88 × 75,250.49
  4. Step 4: Simplify right side
    127,646.87x = 13,254,761,898.81
  5. Step 5: Solve for x
    x = 13,254,761,898.81/127,646.87
  6. Step 6: Final answer
    x = 103,839.31

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1.5x scale

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.