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Finding the Fourth Proportional to 104,793.80, 144,615.43 and 57,047.49

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Solution

The fourth proportional to 104,793.80, 144,615.43 and 57,047.49 is: 78,725.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,793.80 : 144,615.43 = 57,047.49 : x
  2. Step 2: Convert to fraction form
    104,793.80/144,615.43 = 57,047.49/x
  3. Step 3: Cross multiply
    104,793.80x = 144,615.43 × 57,047.49
  4. Step 4: Simplify right side
    104,793.80x = 8,249,947,296.77
  5. Step 5: Solve for x
    x = 8,249,947,296.77/104,793.80
  6. Step 6: Final answer
    x = 78,725.53

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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.