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Finding the Fourth Proportional to 65,015.80, 97,523.70 and 60,641.80

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Solution

The fourth proportional to 65,015.80, 97,523.70 and 60,641.80 is: 90,962.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,015.80 : 97,523.70 = 60,641.80 : x
  2. Step 2: Convert to fraction form
    65,015.80/97,523.70 = 60,641.80/x
  3. Step 3: Cross multiply
    65,015.80x = 97,523.70 × 60,641.80
  4. Step 4: Simplify right side
    65,015.80x = 5,914,012,710.66
  5. Step 5: Solve for x
    x = 5,914,012,710.66/65,015.80
  6. Step 6: Final answer
    x = 90,962.70

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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.