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Finding the Fourth Proportional to 220,397.12, 304,146.56 and 119,795.12

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Solution

The fourth proportional to 220,397.12, 304,146.56 and 119,795.12 is: 165,316.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,397.12 : 304,146.56 = 119,795.12 : x
  2. Step 2: Convert to fraction form
    220,397.12/304,146.56 = 119,795.12/x
  3. Step 3: Cross multiply
    220,397.12x = 304,146.56 × 119,795.12
  4. Step 4: Simplify right side
    220,397.12x = 36,435,273,652.79
  5. Step 5: Solve for x
    x = 36,435,273,652.79/220,397.12
  6. Step 6: Final answer
    x = 165,316.47

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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.