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Finding the Fourth Proportional to 372,107.89, 558,442.69 and 272,526.26

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Solution

The fourth proportional to 372,107.89, 558,442.69 and 272,526.26 is: 408,995.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,107.89 : 558,442.69 = 272,526.26 : x
  2. Step 2: Convert to fraction form
    372,107.89/558,442.69 = 272,526.26/x
  3. Step 3: Cross multiply
    372,107.89x = 558,442.69 × 272,526.26
  4. Step 4: Simplify right side
    372,107.89x = 152,190,297,730.04
  5. Step 5: Solve for x
    x = 152,190,297,730.04/372,107.89
  6. Step 6: Final answer
    x = 408,995.08

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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.