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Finding the Fourth Proportional to 329,655.74, 494,319.96 and 104,986.88

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Solution

The fourth proportional to 329,655.74, 494,319.96 and 104,986.88 is: 157,428.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,655.74 : 494,319.96 = 104,986.88 : x
  2. Step 2: Convert to fraction form
    329,655.74/494,319.96 = 104,986.88/x
  3. Step 3: Cross multiply
    329,655.74x = 494,319.96 × 104,986.88
  4. Step 4: Simplify right side
    329,655.74x = 51,897,110,322.12
  5. Step 5: Solve for x
    x = 51,897,110,322.12/329,655.74
  6. Step 6: Final answer
    x = 157,428.20

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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.