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Finding the Fourth Proportional to 71,253.76, 98,361.76 and 42,583.60

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Solution

The fourth proportional to 71,253.76, 98,361.76 and 42,583.60 is: 58,784.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,253.76 : 98,361.76 = 42,583.60 : x
  2. Step 2: Convert to fraction form
    71,253.76/98,361.76 = 42,583.60/x
  3. Step 3: Cross multiply
    71,253.76x = 98,361.76 × 42,583.60
  4. Step 4: Simplify right side
    71,253.76x = 4,188,597,843.14
  5. Step 5: Solve for x
    x = 4,188,597,843.14/71,253.76
  6. Step 6: Final answer
    x = 58,784.24

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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.