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Finding the Fourth Proportional to 106,385.67, 146,801.63 and 63,356.65

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Solution

The fourth proportional to 106,385.67, 146,801.63 and 63,356.65 is: 87,425.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,385.67 : 146,801.63 = 63,356.65 : x
  2. Step 2: Convert to fraction form
    106,385.67/146,801.63 = 63,356.65/x
  3. Step 3: Cross multiply
    106,385.67x = 146,801.63 × 63,356.65
  4. Step 4: Simplify right side
    106,385.67x = 9,300,859,282.73
  5. Step 5: Solve for x
    x = 9,300,859,282.73/106,385.67
  6. Step 6: Final answer
    x = 87,425.87

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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.