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Finding the Fourth Proportional to 127,825.92, 191,739.33 and 39,079.08

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Solution

The fourth proportional to 127,825.92, 191,739.33 and 39,079.08 is: 58,618.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,825.92 : 191,739.33 = 39,079.08 : x
  2. Step 2: Convert to fraction form
    127,825.92/191,739.33 = 39,079.08/x
  3. Step 3: Cross multiply
    127,825.92x = 191,739.33 × 39,079.08
  4. Step 4: Simplify right side
    127,825.92x = 7,492,996,616.22
  5. Step 5: Solve for x
    x = 7,492,996,616.22/127,825.92
  6. Step 6: Final answer
    x = 58,618.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.