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Finding the Fourth Proportional to 144,093.39, 216,139.92 and 38,912.23

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Solution

The fourth proportional to 144,093.39, 216,139.92 and 38,912.23 is: 58,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,093.39 : 216,139.92 = 38,912.23 : x
  2. Step 2: Convert to fraction form
    144,093.39/216,139.92 = 38,912.23/x
  3. Step 3: Cross multiply
    144,093.39x = 216,139.92 × 38,912.23
  4. Step 4: Simplify right side
    144,093.39x = 8,410,486,279.22
  5. Step 5: Solve for x
    x = 8,410,486,279.22/144,093.39
  6. Step 6: Final answer
    x = 58,368.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.