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Finding the Fourth Proportional to 330,482.88, 495,693.92 and 108,866.88

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Solution

The fourth proportional to 330,482.88, 495,693.92 and 108,866.88 is: 163,290.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,482.88 : 495,693.92 = 108,866.88 : x
  2. Step 2: Convert to fraction form
    330,482.88/495,693.92 = 108,866.88/x
  3. Step 3: Cross multiply
    330,482.88x = 495,693.92 × 108,866.88
  4. Step 4: Simplify right side
    330,482.88x = 53,964,650,505.37
  5. Step 5: Solve for x
    x = 53,964,650,505.37/330,482.88
  6. Step 6: Final answer
    x = 163,290.31

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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.