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Finding the Fourth Proportional to 334,820.80, 502,182.60 and 98,138.80

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Solution

The fourth proportional to 334,820.80, 502,182.60 and 98,138.80 is: 147,193.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,820.80 : 502,182.60 = 98,138.80 : x
  2. Step 2: Convert to fraction form
    334,820.80/502,182.60 = 98,138.80/x
  3. Step 3: Cross multiply
    334,820.80x = 502,182.60 × 98,138.80
  4. Step 4: Simplify right side
    334,820.80x = 49,283,597,744.88
  5. Step 5: Solve for x
    x = 49,283,597,744.88/334,820.80
  6. Step 6: Final answer
    x = 147,193.95

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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.