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Finding the Fourth Proportional to 220,410.72, 304,168.80 and 119,808.96

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Solution

The fourth proportional to 220,410.72, 304,168.80 and 119,808.96 is: 165,337.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,410.72 : 304,168.80 = 119,808.96 : x
  2. Step 2: Convert to fraction form
    220,410.72/304,168.80 = 119,808.96/x
  3. Step 3: Cross multiply
    220,410.72x = 304,168.80 × 119,808.96
  4. Step 4: Simplify right side
    220,410.72x = 36,442,147,592.45
  5. Step 5: Solve for x
    x = 36,442,147,592.45/220,410.72
  6. Step 6: Final answer
    x = 165,337.46

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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.