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Finding the Fourth Proportional to 235,364.10, 353,046.15 and 140,885.70

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Solution

The fourth proportional to 235,364.10, 353,046.15 and 140,885.70 is: 211,328.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,364.10 : 353,046.15 = 140,885.70 : x
  2. Step 2: Convert to fraction form
    235,364.10/353,046.15 = 140,885.70/x
  3. Step 3: Cross multiply
    235,364.10x = 353,046.15 × 140,885.70
  4. Step 4: Simplify right side
    235,364.10x = 49,739,153,975.06
  5. Step 5: Solve for x
    x = 49,739,153,975.06/235,364.10
  6. Step 6: Final answer
    x = 211,328.55

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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.