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Finding the Fourth Proportional to 71,145.76, 98,187.60 and 41,332

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Solution

The fourth proportional to 71,145.76, 98,187.60 and 41,332 is: 57,041.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,145.76 : 98,187.60 = 41,332 : x
  2. Step 2: Convert to fraction form
    71,145.76/98,187.60 = 41,332/x
  3. Step 3: Cross multiply
    71,145.76x = 98,187.60 × 41,332
  4. Step 4: Simplify right side
    71,145.76x = 4,058,289,883.20
  5. Step 5: Solve for x
    x = 4,058,289,883.20/71,145.76
  6. Step 6: Final answer
    x = 57,041.91

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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.