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Finding the Fourth Proportional to 104,661.72, 144,354.96 and 80,458.92

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Solution

The fourth proportional to 104,661.72, 144,354.96 and 80,458.92 is: 110,973.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,661.72 : 144,354.96 = 80,458.92 : x
  2. Step 2: Convert to fraction form
    104,661.72/144,354.96 = 80,458.92/x
  3. Step 3: Cross multiply
    104,661.72x = 144,354.96 × 80,458.92
  4. Step 4: Simplify right side
    104,661.72x = 11,614,644,178.24
  5. Step 5: Solve for x
    x = 11,614,644,178.24/104,661.72
  6. Step 6: Final answer
    x = 110,973.18

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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.