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Finding the Fourth Proportional to 127,598.80, 176,086.44 and 71,008.96

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Solution

The fourth proportional to 127,598.80, 176,086.44 and 71,008.96 is: 97,992.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,598.80 : 176,086.44 = 71,008.96 : x
  2. Step 2: Convert to fraction form
    127,598.80/176,086.44 = 71,008.96/x
  3. Step 3: Cross multiply
    127,598.80x = 176,086.44 × 71,008.96
  4. Step 4: Simplify right side
    127,598.80x = 12,503,714,974.50
  5. Step 5: Solve for x
    x = 12,503,714,974.50/127,598.80
  6. Step 6: Final answer
    x = 97,992.42

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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.