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Finding the Fourth Proportional to 176,411.80, 243,441.30 and 104,789.92

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Solution

The fourth proportional to 176,411.80, 243,441.30 and 104,789.92 is: 144,605.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,411.80 : 243,441.30 = 104,789.92 : x
  2. Step 2: Convert to fraction form
    176,411.80/243,441.30 = 104,789.92/x
  3. Step 3: Cross multiply
    176,411.80x = 243,441.30 × 104,789.92
  4. Step 4: Simplify right side
    176,411.80x = 25,510,194,351.70
  5. Step 5: Solve for x
    x = 25,510,194,351.70/176,411.80
  6. Step 6: Final answer
    x = 144,605.94

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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.