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Finding the Fourth Proportional to 72,587.16, 108,894.78 and 25,203.96

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Solution

The fourth proportional to 72,587.16, 108,894.78 and 25,203.96 is: 37,810.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,587.16 : 108,894.78 = 25,203.96 : x
  2. Step 2: Convert to fraction form
    72,587.16/108,894.78 = 25,203.96/x
  3. Step 3: Cross multiply
    72,587.16x = 108,894.78 × 25,203.96
  4. Step 4: Simplify right side
    72,587.16x = 2,744,579,679.33
  5. Step 5: Solve for x
    x = 2,744,579,679.33/72,587.16
  6. Step 6: Final answer
    x = 37,810.82

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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.