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Finding the Fourth Proportional to 85,807.59, 118,408.83 and 48,074.55

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Solution

The fourth proportional to 85,807.59, 118,408.83 and 48,074.55 is: 66,339.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,807.59 : 118,408.83 = 48,074.55 : x
  2. Step 2: Convert to fraction form
    85,807.59/118,408.83 = 48,074.55/x
  3. Step 3: Cross multiply
    85,807.59x = 118,408.83 × 48,074.55
  4. Step 4: Simplify right side
    85,807.59x = 5,692,451,218.28
  5. Step 5: Solve for x
    x = 5,692,451,218.28/85,807.59
  6. Step 6: Final answer
    x = 66,339.72

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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.