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Finding the Fourth Proportional to 173,780.84, 239,821.20 and 98,329.34

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Solution

The fourth proportional to 173,780.84, 239,821.20 and 98,329.34 is: 135,696.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,780.84 : 239,821.20 = 98,329.34 : x
  2. Step 2: Convert to fraction form
    173,780.84/239,821.20 = 98,329.34/x
  3. Step 3: Cross multiply
    173,780.84x = 239,821.20 × 98,329.34
  4. Step 4: Simplify right side
    173,780.84x = 23,581,459,114.90
  5. Step 5: Solve for x
    x = 23,581,459,114.90/173,780.84
  6. Step 6: Final answer
    x = 135,696.55

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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.