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Finding the Fourth Proportional to 144,863.78, 217,281.08 and 39,698.24

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Solution

The fourth proportional to 144,863.78, 217,281.08 and 39,698.24 is: 59,543.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,863.78 : 217,281.08 = 39,698.24 : x
  2. Step 2: Convert to fraction form
    144,863.78/217,281.08 = 39,698.24/x
  3. Step 3: Cross multiply
    144,863.78x = 217,281.08 × 39,698.24
  4. Step 4: Simplify right side
    144,863.78x = 8,625,675,474.14
  5. Step 5: Solve for x
    x = 8,625,675,474.14/144,863.78
  6. Step 6: Final answer
    x = 59,543.36

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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.