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Finding the Fourth Proportional to 176,105.88, 243,020.62 and 98,581.50

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Solution

The fourth proportional to 176,105.88, 243,020.62 and 98,581.50 is: 136,039.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,105.88 : 243,020.62 = 98,581.50 : x
  2. Step 2: Convert to fraction form
    176,105.88/243,020.62 = 98,581.50/x
  3. Step 3: Cross multiply
    176,105.88x = 243,020.62 × 98,581.50
  4. Step 4: Simplify right side
    176,105.88x = 23,957,337,250.53
  5. Step 5: Solve for x
    x = 23,957,337,250.53/176,105.88
  6. Step 6: Final answer
    x = 136,039.39

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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.