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Finding the Fourth Proportional to 173,781.09, 239,821.55 and 98,329.59

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Solution

The fourth proportional to 173,781.09, 239,821.55 and 98,329.59 is: 135,696.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,781.09 : 239,821.55 = 98,329.59 : x
  2. Step 2: Convert to fraction form
    173,781.09/239,821.55 = 98,329.59/x
  3. Step 3: Cross multiply
    173,781.09x = 239,821.55 × 98,329.59
  4. Step 4: Simplify right side
    173,781.09x = 23,581,554,684.66
  5. Step 5: Solve for x
    x = 23,581,554,684.66/173,781.09
  6. Step 6: Final answer
    x = 135,696.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.