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Finding the Fourth Proportional to 65,489.76, 98,284.08 and 52,498.96

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Solution

The fourth proportional to 65,489.76, 98,284.08 and 52,498.96 is: 78,788.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,489.76 : 98,284.08 = 52,498.96 : x
  2. Step 2: Convert to fraction form
    65,489.76/98,284.08 = 52,498.96/x
  3. Step 3: Cross multiply
    65,489.76x = 98,284.08 × 52,498.96
  4. Step 4: Simplify right side
    65,489.76x = 5,159,811,984.56
  5. Step 5: Solve for x
    x = 5,159,811,984.56/65,489.76
  6. Step 6: Final answer
    x = 78,788.07

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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.