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Finding the Fourth Proportional to 84,651.16, 116,799.68 and 48,838.90

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Solution

The fourth proportional to 84,651.16, 116,799.68 and 48,838.90 is: 67,386.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,651.16 : 116,799.68 = 48,838.90 : x
  2. Step 2: Convert to fraction form
    84,651.16/116,799.68 = 48,838.90/x
  3. Step 3: Cross multiply
    84,651.16x = 116,799.68 × 48,838.90
  4. Step 4: Simplify right side
    84,651.16x = 5,704,367,891.55
  5. Step 5: Solve for x
    x = 5,704,367,891.55/84,651.16
  6. Step 6: Final answer
    x = 67,386.77

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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.