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Finding the Fourth Proportional to 65,987.88, 98,854.20 and 41,037.90

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Solution

The fourth proportional to 65,987.88, 98,854.20 and 41,037.90 is: 61,477.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,987.88 : 98,854.20 = 41,037.90 : x
  2. Step 2: Convert to fraction form
    65,987.88/98,854.20 = 41,037.90/x
  3. Step 3: Cross multiply
    65,987.88x = 98,854.20 × 41,037.90
  4. Step 4: Simplify right side
    65,987.88x = 4,056,768,774.18
  5. Step 5: Solve for x
    x = 4,056,768,774.18/65,987.88
  6. Step 6: Final answer
    x = 61,477.48

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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.