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Finding the Fourth Proportional to 106,488.48, 159,778.08 and 39,960.48

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Solution

The fourth proportional to 106,488.48, 159,778.08 and 39,960.48 is: 59,957.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,488.48 : 159,778.08 = 39,960.48 : x
  2. Step 2: Convert to fraction form
    106,488.48/159,778.08 = 39,960.48/x
  3. Step 3: Cross multiply
    106,488.48x = 159,778.08 × 39,960.48
  4. Step 4: Simplify right side
    106,488.48x = 6,384,808,770.28
  5. Step 5: Solve for x
    x = 6,384,808,770.28/106,488.48
  6. Step 6: Final answer
    x = 59,957.74

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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.