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Finding the Fourth Proportional to 123,205.62, 183,917.18 and 108,258.90

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Solution

The fourth proportional to 123,205.62, 183,917.18 and 108,258.90 is: 161,605.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,205.62 : 183,917.18 = 108,258.90 : x
  2. Step 2: Convert to fraction form
    123,205.62/183,917.18 = 108,258.90/x
  3. Step 3: Cross multiply
    123,205.62x = 183,917.18 × 108,258.90
  4. Step 4: Simplify right side
    123,205.62x = 19,910,671,056.61
  5. Step 5: Solve for x
    x = 19,910,671,056.61/123,205.62
  6. Step 6: Final answer
    x = 161,605.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.