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Finding the Fourth Proportional to 84,955.50, 117,238.73 and 47,229.75

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Solution

The fourth proportional to 84,955.50, 117,238.73 and 47,229.75 is: 65,177.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,955.50 : 117,238.73 = 47,229.75 : x
  2. Step 2: Convert to fraction form
    84,955.50/117,238.73 = 47,229.75/x
  3. Step 3: Cross multiply
    84,955.50x = 117,238.73 × 47,229.75
  4. Step 4: Simplify right side
    84,955.50x = 5,537,155,672.07
  5. Step 5: Solve for x
    x = 5,537,155,672.07/84,955.50
  6. Step 6: Final answer
    x = 65,177.13

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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.