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Finding the Fourth Proportional to 127,752.33, 176,259.20 and 74,026.97

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Solution

The fourth proportional to 127,752.33, 176,259.20 and 74,026.97 is: 102,134.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,752.33 : 176,259.20 = 74,026.97 : x
  2. Step 2: Convert to fraction form
    127,752.33/176,259.20 = 74,026.97/x
  3. Step 3: Cross multiply
    127,752.33x = 176,259.20 × 74,026.97
  4. Step 4: Simplify right side
    127,752.33x = 13,047,933,920.17
  5. Step 5: Solve for x
    x = 13,047,933,920.17/127,752.33
  6. Step 6: Final answer
    x = 102,134.60

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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.