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Finding the Fourth Proportional to 71,042.40, 106,563.60 and 59,637.60

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Solution

The fourth proportional to 71,042.40, 106,563.60 and 59,637.60 is: 89,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,042.40 : 106,563.60 = 59,637.60 : x
  2. Step 2: Convert to fraction form
    71,042.40/106,563.60 = 59,637.60/x
  3. Step 3: Cross multiply
    71,042.40x = 106,563.60 × 59,637.60
  4. Step 4: Simplify right side
    71,042.40x = 6,355,197,351.36
  5. Step 5: Solve for x
    x = 6,355,197,351.36/71,042.40
  6. Step 6: Final answer
    x = 89,456.40

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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.