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Finding the Fourth Proportional to 260,801.48, 391,203.84 and 92,285.12

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Solution

The fourth proportional to 260,801.48, 391,203.84 and 92,285.12 is: 138,428.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,801.48 : 391,203.84 = 92,285.12 : x
  2. Step 2: Convert to fraction form
    260,801.48/391,203.84 = 92,285.12/x
  3. Step 3: Cross multiply
    260,801.48x = 391,203.84 × 92,285.12
  4. Step 4: Simplify right side
    260,801.48x = 36,102,293,318.86
  5. Step 5: Solve for x
    x = 36,102,293,318.86/260,801.48
  6. Step 6: Final answer
    x = 138,428.25

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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.