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Finding the Fourth Proportional to 81,713.44, 112,666.44 and 59,016.16

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Solution

The fourth proportional to 81,713.44, 112,666.44 and 59,016.16 is: 81,371.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,713.44 : 112,666.44 = 59,016.16 : x
  2. Step 2: Convert to fraction form
    81,713.44/112,666.44 = 59,016.16/x
  3. Step 3: Cross multiply
    81,713.44x = 112,666.44 × 59,016.16
  4. Step 4: Simplify right side
    81,713.44x = 6,649,140,649.67
  5. Step 5: Solve for x
    x = 6,649,140,649.67/81,713.44
  6. Step 6: Final answer
    x = 81,371.44

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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.