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Finding the Fourth Proportional to 65,558.76, 98,337.78 and 52,349.28

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Solution

The fourth proportional to 65,558.76, 98,337.78 and 52,349.28 is: 78,523.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,558.76 : 98,337.78 = 52,349.28 : x
  2. Step 2: Convert to fraction form
    65,558.76/98,337.78 = 52,349.28/x
  3. Step 3: Cross multiply
    65,558.76x = 98,337.78 × 52,349.28
  4. Step 4: Simplify right side
    65,558.76x = 5,147,911,979.80
  5. Step 5: Solve for x
    x = 5,147,911,979.80/65,558.76
  6. Step 6: Final answer
    x = 78,523.63

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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.