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Finding the Fourth Proportional to 64,987.20, 97,568.40 and 41,659.20

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Solution

The fourth proportional to 64,987.20, 97,568.40 and 41,659.20 is: 62,544.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,987.20 : 97,568.40 = 41,659.20 : x
  2. Step 2: Convert to fraction form
    64,987.20/97,568.40 = 41,659.20/x
  3. Step 3: Cross multiply
    64,987.20x = 97,568.40 × 41,659.20
  4. Step 4: Simplify right side
    64,987.20x = 4,064,621,489.28
  5. Step 5: Solve for x
    x = 4,064,621,489.28/64,987.20
  6. Step 6: Final answer
    x = 62,544.95

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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.