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Finding the Fourth Proportional to 63,194.92, 87,201.30 and 40,216.84

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Solution

The fourth proportional to 63,194.92, 87,201.30 and 40,216.84 is: 55,494.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,194.92 : 87,201.30 = 40,216.84 : x
  2. Step 2: Convert to fraction form
    63,194.92/87,201.30 = 40,216.84/x
  3. Step 3: Cross multiply
    63,194.92x = 87,201.30 × 40,216.84
  4. Step 4: Simplify right side
    63,194.92x = 3,506,960,729.89
  5. Step 5: Solve for x
    x = 3,506,960,729.89/63,194.92
  6. Step 6: Final answer
    x = 55,494.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.