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Finding the Fourth Proportional to 260,917.24, 391,424.48 and 83,468.92

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Solution

The fourth proportional to 260,917.24, 391,424.48 and 83,468.92 is: 125,218.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,917.24 : 391,424.48 = 83,468.92 : x
  2. Step 2: Convert to fraction form
    260,917.24/391,424.48 = 83,468.92/x
  3. Step 3: Cross multiply
    260,917.24x = 391,424.48 × 83,468.92
  4. Step 4: Simplify right side
    260,917.24x = 32,671,778,607.16
  5. Step 5: Solve for x
    x = 32,671,778,607.16/260,917.24
  6. Step 6: Final answer
    x = 125,218.93

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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.