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Finding the Fourth Proportional to 120,776.60, 181,888.22 and 110,002.88

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Solution

The fourth proportional to 120,776.60, 181,888.22 and 110,002.88 is: 165,663.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,776.60 : 181,888.22 = 110,002.88 : x
  2. Step 2: Convert to fraction form
    120,776.60/181,888.22 = 110,002.88/x
  3. Step 3: Cross multiply
    120,776.60x = 181,888.22 × 110,002.88
  4. Step 4: Simplify right side
    120,776.60x = 20,008,228,038.07
  5. Step 5: Solve for x
    x = 20,008,228,038.07/120,776.60
  6. Step 6: Final answer
    x = 165,663.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.