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Finding the Fourth Proportional to 334,895.20, 502,407.60 and 98,245.60

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Solution

The fourth proportional to 334,895.20, 502,407.60 and 98,245.60 is: 147,387.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,895.20 : 502,407.60 = 98,245.60 : x
  2. Step 2: Convert to fraction form
    334,895.20/502,407.60 = 98,245.60/x
  3. Step 3: Cross multiply
    334,895.20x = 502,407.60 × 98,245.60
  4. Step 4: Simplify right side
    334,895.20x = 49,359,336,106.56
  5. Step 5: Solve for x
    x = 49,359,336,106.56/334,895.20
  6. Step 6: Final answer
    x = 147,387.41

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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.