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Finding the Fourth Proportional to 72,604.54, 108,868.20 and 25,207.66

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Solution

The fourth proportional to 72,604.54, 108,868.20 and 25,207.66 is: 37,798.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,604.54 : 108,868.20 = 25,207.66 : x
  2. Step 2: Convert to fraction form
    72,604.54/108,868.20 = 25,207.66/x
  3. Step 3: Cross multiply
    72,604.54x = 108,868.20 × 25,207.66
  4. Step 4: Simplify right side
    72,604.54x = 2,744,312,570.41
  5. Step 5: Solve for x
    x = 2,744,312,570.41/72,604.54
  6. Step 6: Final answer
    x = 37,798.08

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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.