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Finding the Fourth Proportional to 71,655.76, 98,894.28 and 43,361.92

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Solution

The fourth proportional to 71,655.76, 98,894.28 and 43,361.92 is: 59,845.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,655.76 : 98,894.28 = 43,361.92 : x
  2. Step 2: Convert to fraction form
    71,655.76/98,894.28 = 43,361.92/x
  3. Step 3: Cross multiply
    71,655.76x = 98,894.28 × 43,361.92
  4. Step 4: Simplify right side
    71,655.76x = 4,288,245,857.82
  5. Step 5: Solve for x
    x = 4,288,245,857.82/71,655.76
  6. Step 6: Final answer
    x = 59,845.10

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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.