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Finding the Fourth Proportional to 83,228.94, 124,842.86 and 33,320.58

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Solution

The fourth proportional to 83,228.94, 124,842.86 and 33,320.58 is: 49,980.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,228.94 : 124,842.86 = 33,320.58 : x
  2. Step 2: Convert to fraction form
    83,228.94/124,842.86 = 33,320.58/x
  3. Step 3: Cross multiply
    83,228.94x = 124,842.86 × 33,320.58
  4. Step 4: Simplify right side
    83,228.94x = 4,159,836,504.06
  5. Step 5: Solve for x
    x = 4,159,836,504.06/83,228.94
  6. Step 6: Final answer
    x = 49,980.65

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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.