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Finding the Fourth Proportional to 329,300.64, 493,711.20 and 104,587.20

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Solution

The fourth proportional to 329,300.64, 493,711.20 and 104,587.20 is: 156,804.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,300.64 : 493,711.20 = 104,587.20 : x
  2. Step 2: Convert to fraction form
    329,300.64/493,711.20 = 104,587.20/x
  3. Step 3: Cross multiply
    329,300.64x = 493,711.20 × 104,587.20
  4. Step 4: Simplify right side
    329,300.64x = 51,635,872,016.64
  5. Step 5: Solve for x
    x = 51,635,872,016.64/329,300.64
  6. Step 6: Final answer
    x = 156,804.65

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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.