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Finding the Fourth Proportional to 235,077.10, 352,648.05 and 85,281.10

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Solution

The fourth proportional to 235,077.10, 352,648.05 and 85,281.10 is: 127,933.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,077.10 : 352,648.05 = 85,281.10 : x
  2. Step 2: Convert to fraction form
    235,077.10/352,648.05 = 85,281.10/x
  3. Step 3: Cross multiply
    235,077.10x = 352,648.05 × 85,281.10
  4. Step 4: Simplify right side
    235,077.10x = 30,074,213,616.86
  5. Step 5: Solve for x
    x = 30,074,213,616.86/235,077.10
  6. Step 6: Final answer
    x = 127,933.40

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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.