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Finding the Fourth Proportional to 77,335.84, 116,049.84 and 28,091.68

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Solution

The fourth proportional to 77,335.84, 116,049.84 and 28,091.68 is: 42,154.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,335.84 : 116,049.84 = 28,091.68 : x
  2. Step 2: Convert to fraction form
    77,335.84/116,049.84 = 28,091.68/x
  3. Step 3: Cross multiply
    77,335.84x = 116,049.84 × 28,091.68
  4. Step 4: Simplify right side
    77,335.84x = 3,260,034,969.33
  5. Step 5: Solve for x
    x = 3,260,034,969.33/77,335.84
  6. Step 6: Final answer
    x = 42,154.26

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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.