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Finding the Fourth Proportional to 250,587.72, 345,826.80 and 137,410.47

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Solution

The fourth proportional to 250,587.72, 345,826.80 and 137,410.47 is: 189,635.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,587.72 : 345,826.80 = 137,410.47 : x
  2. Step 2: Convert to fraction form
    250,587.72/345,826.80 = 137,410.47/x
  3. Step 3: Cross multiply
    250,587.72x = 345,826.80 × 137,410.47
  4. Step 4: Simplify right side
    250,587.72x = 47,520,223,126.60
  5. Step 5: Solve for x
    x = 47,520,223,126.60/250,587.72
  6. Step 6: Final answer
    x = 189,635.08

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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.