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Finding the Fourth Proportional to 117,610.80, 176,221.80 and 100,892.40

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Solution

The fourth proportional to 117,610.80, 176,221.80 and 100,892.40 is: 151,171.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,610.80 : 176,221.80 = 100,892.40 : x
  2. Step 2: Convert to fraction form
    117,610.80/176,221.80 = 100,892.40/x
  3. Step 3: Cross multiply
    117,610.80x = 176,221.80 × 100,892.40
  4. Step 4: Simplify right side
    117,610.80x = 17,779,440,334.32
  5. Step 5: Solve for x
    x = 17,779,440,334.32/117,610.80
  6. Step 6: Final answer
    x = 151,171.83

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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.