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Finding the Fourth Proportional to 372,555.02, 558,888.42 and 172,895.90

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Solution

The fourth proportional to 372,555.02, 558,888.42 and 172,895.90 is: 259,369.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,555.02 : 558,888.42 = 172,895.90 : x
  2. Step 2: Convert to fraction form
    372,555.02/558,888.42 = 172,895.90/x
  3. Step 3: Cross multiply
    372,555.02x = 558,888.42 × 172,895.90
  4. Step 4: Simplify right side
    372,555.02x = 96,629,513,581.04
  5. Step 5: Solve for x
    x = 96,629,513,581.04/372,555.02
  6. Step 6: Final answer
    x = 259,369.78

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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.