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Finding the Fourth Proportional to 127,098.80, 175,041.20 and 124,343.76

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Solution

The fourth proportional to 127,098.80, 175,041.20 and 124,343.76 is: 171,246.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,098.80 : 175,041.20 = 124,343.76 : x
  2. Step 2: Convert to fraction form
    127,098.80/175,041.20 = 124,343.76/x
  3. Step 3: Cross multiply
    127,098.80x = 175,041.20 × 124,343.76
  4. Step 4: Simplify right side
    127,098.80x = 21,765,280,962.91
  5. Step 5: Solve for x
    x = 21,765,280,962.91/127,098.80
  6. Step 6: Final answer
    x = 171,246.94

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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.