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Finding the Fourth Proportional to 65,518.48, 98,277.72 and 43,472.68

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Solution

The fourth proportional to 65,518.48, 98,277.72 and 43,472.68 is: 65,209.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,518.48 : 98,277.72 = 43,472.68 : x
  2. Step 2: Convert to fraction form
    65,518.48/98,277.72 = 43,472.68/x
  3. Step 3: Cross multiply
    65,518.48x = 98,277.72 × 43,472.68
  4. Step 4: Simplify right side
    65,518.48x = 4,272,395,872.69
  5. Step 5: Solve for x
    x = 4,272,395,872.69/65,518.48
  6. Step 6: Final answer
    x = 65,209.02

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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.