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Finding the Fourth Proportional to 117,610.80, 176,761.80 and 102,404.40

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Solution

The fourth proportional to 117,610.80, 176,761.80 and 102,404.40 is: 153,907.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,610.80 : 176,761.80 = 102,404.40 : x
  2. Step 2: Convert to fraction form
    117,610.80/176,761.80 = 102,404.40/x
  3. Step 3: Cross multiply
    117,610.80x = 176,761.80 × 102,404.40
  4. Step 4: Simplify right side
    117,610.80x = 18,101,186,071.92
  5. Step 5: Solve for x
    x = 18,101,186,071.92/117,610.80
  6. Step 6: Final answer
    x = 153,907.52

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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.