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Finding the Fourth Proportional to 183,947.60, 253,843.80 and 108,520.40

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Solution

The fourth proportional to 183,947.60, 253,843.80 and 108,520.40 is: 149,755.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,947.60 : 253,843.80 = 108,520.40 : x
  2. Step 2: Convert to fraction form
    183,947.60/253,843.80 = 108,520.40/x
  3. Step 3: Cross multiply
    183,947.60x = 253,843.80 × 108,520.40
  4. Step 4: Simplify right side
    183,947.60x = 27,547,230,713.52
  5. Step 5: Solve for x
    x = 27,547,230,713.52/183,947.60
  6. Step 6: Final answer
    x = 149,755.86

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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.