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Finding the Fourth Proportional to 61,903.22, 85,235.16 and 48,346.02

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Solution

The fourth proportional to 61,903.22, 85,235.16 and 48,346.02 is: 66,568.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,903.22 : 85,235.16 = 48,346.02 : x
  2. Step 2: Convert to fraction form
    61,903.22/85,235.16 = 48,346.02/x
  3. Step 3: Cross multiply
    61,903.22x = 85,235.16 × 48,346.02
  4. Step 4: Simplify right side
    61,903.22x = 4,120,780,659.41
  5. Step 5: Solve for x
    x = 4,120,780,659.41/61,903.22
  6. Step 6: Final answer
    x = 66,568.12

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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.