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Finding the Fourth Proportional to 372,195.48, 558,522.86 and 172,478.64

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Solution

The fourth proportional to 372,195.48, 558,522.86 and 172,478.64 is: 258,824.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,195.48 : 558,522.86 = 172,478.64 : x
  2. Step 2: Convert to fraction form
    372,195.48/558,522.86 = 172,478.64/x
  3. Step 3: Cross multiply
    372,195.48x = 558,522.86 × 172,478.64
  4. Step 4: Simplify right side
    372,195.48x = 96,333,263,301.71
  5. Step 5: Solve for x
    x = 96,333,263,301.71/372,195.48
  6. Step 6: Final answer
    x = 258,824.38

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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.