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Finding the Fourth Proportional to 127,347.68, 175,732.08 and 70,757.12

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Solution

The fourth proportional to 127,347.68, 175,732.08 and 70,757.12 is: 97,640.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,347.68 : 175,732.08 = 70,757.12 : x
  2. Step 2: Convert to fraction form
    127,347.68/175,732.08 = 70,757.12/x
  3. Step 3: Cross multiply
    127,347.68x = 175,732.08 × 70,757.12
  4. Step 4: Simplify right side
    127,347.68x = 12,434,295,872.41
  5. Step 5: Solve for x
    x = 12,434,295,872.41/127,347.68
  6. Step 6: Final answer
    x = 97,640.54

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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.