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Finding the Fourth Proportional to 61,659.20, 92,496.08 and 19,541.22

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Solution

The fourth proportional to 61,659.20, 92,496.08 and 19,541.22 is: 29,314.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,659.20 : 92,496.08 = 19,541.22 : x
  2. Step 2: Convert to fraction form
    61,659.20/92,496.08 = 19,541.22/x
  3. Step 3: Cross multiply
    61,659.20x = 92,496.08 × 19,541.22
  4. Step 4: Simplify right side
    61,659.20x = 1,807,486,150.71
  5. Step 5: Solve for x
    x = 1,807,486,150.71/61,659.20
  6. Step 6: Final answer
    x = 29,314.14

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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.