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Finding the Fourth Proportional to 77,920.95, 116,797.59 and 33,568.59

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Solution

The fourth proportional to 77,920.95, 116,797.59 and 33,568.59 is: 50,316.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,920.95 : 116,797.59 = 33,568.59 : x
  2. Step 2: Convert to fraction form
    77,920.95/116,797.59 = 33,568.59/x
  3. Step 3: Cross multiply
    77,920.95x = 116,797.59 × 33,568.59
  4. Step 4: Simplify right side
    77,920.95x = 3,920,730,411.70
  5. Step 5: Solve for x
    x = 3,920,730,411.70/77,920.95
  6. Step 6: Final answer
    x = 50,316.77

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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.