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Finding the Fourth Proportional to 127,808.72, 191,713.08 and 39,062.48

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Solution

The fourth proportional to 127,808.72, 191,713.08 and 39,062.48 is: 58,593.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,808.72 : 191,713.08 = 39,062.48 : x
  2. Step 2: Convert to fraction form
    127,808.72/191,713.08 = 39,062.48/x
  3. Step 3: Cross multiply
    127,808.72x = 191,713.08 × 39,062.48
  4. Step 4: Simplify right side
    127,808.72x = 7,488,788,353.24
  5. Step 5: Solve for x
    x = 7,488,788,353.24/127,808.72
  6. Step 6: Final answer
    x = 58,593.72

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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.