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Finding the Fourth Proportional to 80,894.94, 111,638.48 and 45,084.95

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Solution

The fourth proportional to 80,894.94, 111,638.48 and 45,084.95 is: 62,219.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,894.94 : 111,638.48 = 45,084.95 : x
  2. Step 2: Convert to fraction form
    80,894.94/111,638.48 = 45,084.95/x
  3. Step 3: Cross multiply
    80,894.94x = 111,638.48 × 45,084.95
  4. Step 4: Simplify right side
    80,894.94x = 5,033,215,063.45
  5. Step 5: Solve for x
    x = 5,033,215,063.45/80,894.94
  6. Step 6: Final answer
    x = 62,219.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.