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Finding the Fourth Proportional to 65,337.72, 97,928.81 and 45,508.92

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Solution

The fourth proportional to 65,337.72, 97,928.81 and 45,508.92 is: 68,209.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,337.72 : 97,928.81 = 45,508.92 : x
  2. Step 2: Convert to fraction form
    65,337.72/97,928.81 = 45,508.92/x
  3. Step 3: Cross multiply
    65,337.72x = 97,928.81 × 45,508.92
  4. Step 4: Simplify right side
    65,337.72x = 4,456,634,379.99
  5. Step 5: Solve for x
    x = 4,456,634,379.99/65,337.72
  6. Step 6: Final answer
    x = 68,209.21

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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.