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Finding the Fourth Proportional to 84,684.95, 116,865.03 and 48,874.95

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Solution

The fourth proportional to 84,684.95, 116,865.03 and 48,874.95 is: 67,447.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,684.95 : 116,865.03 = 48,874.95 : x
  2. Step 2: Convert to fraction form
    84,684.95/116,865.03 = 48,874.95/x
  3. Step 3: Cross multiply
    84,684.95x = 116,865.03 × 48,874.95
  4. Step 4: Simplify right side
    84,684.95x = 5,711,772,498.00
  5. Step 5: Solve for x
    x = 5,711,772,498.00/84,684.95
  6. Step 6: Final answer
    x = 67,447.32

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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.