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Finding the Fourth Proportional to 117,848.80, 176,578.80 and 100,352.80

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Solution

The fourth proportional to 117,848.80, 176,578.80 and 100,352.80 is: 150,363.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,848.80 : 176,578.80 = 100,352.80 : x
  2. Step 2: Convert to fraction form
    117,848.80/176,578.80 = 100,352.80/x
  3. Step 3: Cross multiply
    117,848.80x = 176,578.80 × 100,352.80
  4. Step 4: Simplify right side
    117,848.80x = 17,720,177,000.64
  5. Step 5: Solve for x
    x = 17,720,177,000.64/117,848.80
  6. Step 6: Final answer
    x = 150,363.66

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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.