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Finding the Fourth Proportional to 115,060.80, 172,520.80 and 44,859.20

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Solution

The fourth proportional to 115,060.80, 172,520.80 and 44,859.20 is: 67,261.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,060.80 : 172,520.80 = 44,859.20 : x
  2. Step 2: Convert to fraction form
    115,060.80/172,520.80 = 44,859.20/x
  3. Step 3: Cross multiply
    115,060.80x = 172,520.80 × 44,859.20
  4. Step 4: Simplify right side
    115,060.80x = 7,739,145,071.36
  5. Step 5: Solve for x
    x = 7,739,145,071.36/115,060.80
  6. Step 6: Final answer
    x = 67,261.35

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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.