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Finding the Fourth Proportional to 225,389.62, 338,140.59 and 67,620.98

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Solution

The fourth proportional to 225,389.62, 338,140.59 and 67,620.98 is: 101,448.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,389.62 : 338,140.59 = 67,620.98 : x
  2. Step 2: Convert to fraction form
    225,389.62/338,140.59 = 67,620.98/x
  3. Step 3: Cross multiply
    225,389.62x = 338,140.59 × 67,620.98
  4. Step 4: Simplify right side
    225,389.62x = 22,865,398,073.58
  5. Step 5: Solve for x
    x = 22,865,398,073.58/225,389.62
  6. Step 6: Final answer
    x = 101,448.32

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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.