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Finding the Fourth Proportional to 84,223.85, 126,268.71 and 48,644.69

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Solution

The fourth proportional to 84,223.85, 126,268.71 and 48,644.69 is: 72,928.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,223.85 : 126,268.71 = 48,644.69 : x
  2. Step 2: Convert to fraction form
    84,223.85/126,268.71 = 48,644.69/x
  3. Step 3: Cross multiply
    84,223.85x = 126,268.71 × 48,644.69
  4. Step 4: Simplify right side
    84,223.85x = 6,142,302,254.65
  5. Step 5: Solve for x
    x = 6,142,302,254.65/84,223.85
  6. Step 6: Final answer
    x = 72,928.30

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1.5x scale

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.