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Finding the Fourth Proportional to 84,280.80, 116,329.86 and 48,474.84

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Solution

The fourth proportional to 84,280.80, 116,329.86 and 48,474.84 is: 66,908.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,280.80 : 116,329.86 = 48,474.84 : x
  2. Step 2: Convert to fraction form
    84,280.80/116,329.86 = 48,474.84/x
  3. Step 3: Cross multiply
    84,280.80x = 116,329.86 × 48,474.84
  4. Step 4: Simplify right side
    84,280.80x = 5,639,071,350.72
  5. Step 5: Solve for x
    x = 5,639,071,350.72/84,280.80
  6. Step 6: Final answer
    x = 66,908.14

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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.