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Finding the Fourth Proportional to 96,658.80, 133,327.72 and 69,840.68

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Solution

The fourth proportional to 96,658.80, 133,327.72 and 69,840.68 is: 96,335.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,658.80 : 133,327.72 = 69,840.68 : x
  2. Step 2: Convert to fraction form
    96,658.80/133,327.72 = 69,840.68/x
  3. Step 3: Cross multiply
    96,658.80x = 133,327.72 × 69,840.68
  4. Step 4: Simplify right side
    96,658.80x = 9,311,698,627.65
  5. Step 5: Solve for x
    x = 9,311,698,627.65/96,658.80
  6. Step 6: Final answer
    x = 96,335.76

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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.