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Finding the Fourth Proportional to 99,045.80, 148,569.02 and 25,173.80

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Solution

The fourth proportional to 99,045.80, 148,569.02 and 25,173.80 is: 37,760.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,045.80 : 148,569.02 = 25,173.80 : x
  2. Step 2: Convert to fraction form
    99,045.80/148,569.02 = 25,173.80/x
  3. Step 3: Cross multiply
    99,045.80x = 148,569.02 × 25,173.80
  4. Step 4: Simplify right side
    99,045.80x = 3,740,046,795.68
  5. Step 5: Solve for x
    x = 3,740,046,795.68/99,045.80
  6. Step 6: Final answer
    x = 37,760.78

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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.