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Finding the Fourth Proportional to 116,948.80, 175,552.80 and 72,625.60

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Solution

The fourth proportional to 116,948.80, 175,552.80 and 72,625.60 is: 109,018.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,948.80 : 175,552.80 = 72,625.60 : x
  2. Step 2: Convert to fraction form
    116,948.80/175,552.80 = 72,625.60/x
  3. Step 3: Cross multiply
    116,948.80x = 175,552.80 × 72,625.60
  4. Step 4: Simplify right side
    116,948.80x = 12,749,627,431.68
  5. Step 5: Solve for x
    x = 12,749,627,431.68/116,948.80
  6. Step 6: Final answer
    x = 109,018.88

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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.