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Finding the Fourth Proportional to 239,891.45, 359,055.90 and 176,686.65

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Solution

The fourth proportional to 239,891.45, 359,055.90 and 176,686.65 is: 264,454.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,891.45 : 359,055.90 = 176,686.65 : x
  2. Step 2: Convert to fraction form
    239,891.45/359,055.90 = 176,686.65/x
  3. Step 3: Cross multiply
    239,891.45x = 359,055.90 × 176,686.65
  4. Step 4: Simplify right side
    239,891.45x = 63,440,384,133.74
  5. Step 5: Solve for x
    x = 63,440,384,133.74/239,891.45
  6. Step 6: Final answer
    x = 264,454.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.