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Finding the Fourth Proportional to 127,713.96, 191,275.65 and 123,285.29

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Solution

The fourth proportional to 127,713.96, 191,275.65 and 123,285.29 is: 184,642.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,713.96 : 191,275.65 = 123,285.29 : x
  2. Step 2: Convert to fraction form
    127,713.96/191,275.65 = 123,285.29/x
  3. Step 3: Cross multiply
    127,713.96x = 191,275.65 × 123,285.29
  4. Step 4: Simplify right side
    127,713.96x = 23,581,473,023.81
  5. Step 5: Solve for x
    x = 23,581,473,023.81/127,713.96
  6. Step 6: Final answer
    x = 184,642.88

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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.