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Finding the Fourth Proportional to 245,449.13, 368,174.16 and 67,956.66

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Solution

The fourth proportional to 245,449.13, 368,174.16 and 67,956.66 is: 101,935.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,449.13 : 368,174.16 = 67,956.66 : x
  2. Step 2: Convert to fraction form
    245,449.13/368,174.16 = 67,956.66/x
  3. Step 3: Cross multiply
    245,449.13x = 368,174.16 × 67,956.66
  4. Step 4: Simplify right side
    245,449.13x = 25,019,886,211.91
  5. Step 5: Solve for x
    x = 25,019,886,211.91/245,449.13
  6. Step 6: Final answer
    x = 101,935.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.