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Finding the Fourth Proportional to 321,041.65, 443,032.04 and 177,798.62

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Solution

The fourth proportional to 321,041.65, 443,032.04 and 177,798.62 is: 245,359.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,041.65 : 443,032.04 = 177,798.62 : x
  2. Step 2: Convert to fraction form
    321,041.65/443,032.04 = 177,798.62/x
  3. Step 3: Cross multiply
    321,041.65x = 443,032.04 × 177,798.62
  4. Step 4: Simplify right side
    321,041.65x = 78,770,482,223.63
  5. Step 5: Solve for x
    x = 78,770,482,223.63/321,041.65
  6. Step 6: Final answer
    x = 245,359.08

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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.