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Finding the Fourth Proportional to 65,810.70, 98,716.05 and 61,404.30

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Solution

The fourth proportional to 65,810.70, 98,716.05 and 61,404.30 is: 92,106.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,810.70 : 98,716.05 = 61,404.30 : x
  2. Step 2: Convert to fraction form
    65,810.70/98,716.05 = 61,404.30/x
  3. Step 3: Cross multiply
    65,810.70x = 98,716.05 × 61,404.30
  4. Step 4: Simplify right side
    65,810.70x = 6,061,589,949.02
  5. Step 5: Solve for x
    x = 6,061,589,949.02/65,810.70
  6. Step 6: Final answer
    x = 92,106.45

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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.