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Finding the Fourth Proportional to 56,744.40, 85,116.60 and 36,059.60

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Solution

The fourth proportional to 56,744.40, 85,116.60 and 36,059.60 is: 54,089.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,744.40 : 85,116.60 = 36,059.60 : x
  2. Step 2: Convert to fraction form
    56,744.40/85,116.60 = 36,059.60/x
  3. Step 3: Cross multiply
    56,744.40x = 85,116.60 × 36,059.60
  4. Step 4: Simplify right side
    56,744.40x = 3,069,270,549.36
  5. Step 5: Solve for x
    x = 3,069,270,549.36/56,744.40
  6. Step 6: Final answer
    x = 54,089.40

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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.