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Finding the Fourth Proportional to 127,379.52, 175,788 and 70,793.28

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Solution

The fourth proportional to 127,379.52, 175,788 and 70,793.28 is: 97,697.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,379.52 : 175,788 = 70,793.28 : x
  2. Step 2: Convert to fraction form
    127,379.52/175,788 = 70,793.28/x
  3. Step 3: Cross multiply
    127,379.52x = 175,788 × 70,793.28
  4. Step 4: Simplify right side
    127,379.52x = 12,444,609,104.64
  5. Step 5: Solve for x
    x = 12,444,609,104.64/127,379.52
  6. Step 6: Final answer
    x = 97,697.10

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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.