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Finding the Fourth Proportional to 144,920.40, 217,369.80 and 60,658.80

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Solution

The fourth proportional to 144,920.40, 217,369.80 and 60,658.80 is: 90,983.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,920.40 : 217,369.80 = 60,658.80 : x
  2. Step 2: Convert to fraction form
    144,920.40/217,369.80 = 60,658.80/x
  3. Step 3: Cross multiply
    144,920.40x = 217,369.80 × 60,658.80
  4. Step 4: Simplify right side
    144,920.40x = 13,185,391,224.24
  5. Step 5: Solve for x
    x = 13,185,391,224.24/144,920.40
  6. Step 6: Final answer
    x = 90,983.68

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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.