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Finding the Fourth Proportional to 263,537.60, 395,306.40 and 66,545.60

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Solution

The fourth proportional to 263,537.60, 395,306.40 and 66,545.60 is: 99,818.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,537.60 : 395,306.40 = 66,545.60 : x
  2. Step 2: Convert to fraction form
    263,537.60/395,306.40 = 66,545.60/x
  3. Step 3: Cross multiply
    263,537.60x = 395,306.40 × 66,545.60
  4. Step 4: Simplify right side
    263,537.60x = 26,305,901,571.84
  5. Step 5: Solve for x
    x = 26,305,901,571.84/263,537.60
  6. Step 6: Final answer
    x = 99,818.40

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1.5x scale

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.