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Finding the Fourth Proportional to 113,777.30, 156,945.02 and 73,514.80

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Solution

The fourth proportional to 113,777.30, 156,945.02 and 73,514.80 is: 101,406.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,777.30 : 156,945.02 = 73,514.80 : x
  2. Step 2: Convert to fraction form
    113,777.30/156,945.02 = 73,514.80/x
  3. Step 3: Cross multiply
    113,777.30x = 156,945.02 × 73,514.80
  4. Step 4: Simplify right side
    113,777.30x = 11,537,781,756.30
  5. Step 5: Solve for x
    x = 11,537,781,756.30/113,777.30
  6. Step 6: Final answer
    x = 101,406.71

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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.