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Finding the Fourth Proportional to 265,058.68, 397,600.80 and 87,561.76

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Solution

The fourth proportional to 265,058.68, 397,600.80 and 87,561.76 is: 131,346.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,058.68 : 397,600.80 = 87,561.76 : x
  2. Step 2: Convert to fraction form
    265,058.68/397,600.80 = 87,561.76/x
  3. Step 3: Cross multiply
    265,058.68x = 397,600.80 × 87,561.76
  4. Step 4: Simplify right side
    265,058.68x = 34,814,625,825.41
  5. Step 5: Solve for x
    x = 34,814,625,825.41/265,058.68
  6. Step 6: Final answer
    x = 131,346.86

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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.