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Finding the Fourth Proportional to 250,523.28, 345,721.68 and 137,353.32

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Solution

The fourth proportional to 250,523.28, 345,721.68 and 137,353.32 is: 189,547.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,523.28 : 345,721.68 = 137,353.32 : x
  2. Step 2: Convert to fraction form
    250,523.28/345,721.68 = 137,353.32/x
  3. Step 3: Cross multiply
    250,523.28x = 345,721.68 × 137,353.32
  4. Step 4: Simplify right side
    250,523.28x = 47,486,020,543.98
  5. Step 5: Solve for x
    x = 47,486,020,543.98/250,523.28
  6. Step 6: Final answer
    x = 189,547.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.