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Finding the Fourth Proportional to 74,985.92, 112,441.80 and 25,048.88

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Solution

The fourth proportional to 74,985.92, 112,441.80 and 25,048.88 is: 37,560.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,985.92 : 112,441.80 = 25,048.88 : x
  2. Step 2: Convert to fraction form
    74,985.92/112,441.80 = 25,048.88/x
  3. Step 3: Cross multiply
    74,985.92x = 112,441.80 × 25,048.88
  4. Step 4: Simplify right side
    74,985.92x = 2,816,541,155.18
  5. Step 5: Solve for x
    x = 2,816,541,155.18/74,985.92
  6. Step 6: Final answer
    x = 37,560.93

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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.