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Finding the Fourth Proportional to 85,468.85, 117,928.07 and 49,168.07

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Solution

The fourth proportional to 85,468.85, 117,928.07 and 49,168.07 is: 67,841.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,468.85 : 117,928.07 = 49,168.07 : x
  2. Step 2: Convert to fraction form
    85,468.85/117,928.07 = 49,168.07/x
  3. Step 3: Cross multiply
    85,468.85x = 117,928.07 × 49,168.07
  4. Step 4: Simplify right side
    85,468.85x = 5,798,295,576.23
  5. Step 5: Solve for x
    x = 5,798,295,576.23/85,468.85
  6. Step 6: Final answer
    x = 67,841.04

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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.