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Finding the Fourth Proportional to 65,747.60, 98,621.40 and 44,752.40

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Solution

The fourth proportional to 65,747.60, 98,621.40 and 44,752.40 is: 67,128.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,747.60 : 98,621.40 = 44,752.40 : x
  2. Step 2: Convert to fraction form
    65,747.60/98,621.40 = 44,752.40/x
  3. Step 3: Cross multiply
    65,747.60x = 98,621.40 × 44,752.40
  4. Step 4: Simplify right side
    65,747.60x = 4,413,544,341.36
  5. Step 5: Solve for x
    x = 4,413,544,341.36/65,747.60
  6. Step 6: Final answer
    x = 67,128.60

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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.