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Finding the Fourth Proportional to 123,956.54, 185,947.11 and 39,695.54

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Solution

The fourth proportional to 123,956.54, 185,947.11 and 39,695.54 is: 59,547.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,956.54 : 185,947.11 = 39,695.54 : x
  2. Step 2: Convert to fraction form
    123,956.54/185,947.11 = 39,695.54/x
  3. Step 3: Cross multiply
    123,956.54x = 185,947.11 × 39,695.54
  4. Step 4: Simplify right side
    123,956.54x = 7,381,270,942.89
  5. Step 5: Solve for x
    x = 7,381,270,942.89/123,956.54
  6. Step 6: Final answer
    x = 59,547.25

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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.