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Finding the Fourth Proportional to 127,407.56, 175,818.11 and 70,817.72

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Solution

The fourth proportional to 127,407.56, 175,818.11 and 70,817.72 is: 97,726.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,407.56 : 175,818.11 = 70,817.72 : x
  2. Step 2: Convert to fraction form
    127,407.56/175,818.11 = 70,817.72/x
  3. Step 3: Cross multiply
    127,407.56x = 175,818.11 × 70,817.72
  4. Step 4: Simplify right side
    127,407.56x = 12,451,036,451.73
  5. Step 5: Solve for x
    x = 12,451,036,451.73/127,407.56
  6. Step 6: Final answer
    x = 97,726.04

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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.