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Finding the Fourth Proportional to 84,940.39, 117,218.54 and 46,700.20

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Solution

The fourth proportional to 84,940.39, 117,218.54 and 46,700.20 is: 64,446.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,940.39 : 117,218.54 = 46,700.20 : x
  2. Step 2: Convert to fraction form
    84,940.39/117,218.54 = 46,700.20/x
  3. Step 3: Cross multiply
    84,940.39x = 117,218.54 × 46,700.20
  4. Step 4: Simplify right side
    84,940.39x = 5,474,129,163.13
  5. Step 5: Solve for x
    x = 5,474,129,163.13/84,940.39
  6. Step 6: Final answer
    x = 64,446.72

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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.