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Finding the Fourth Proportional to 155,139.68, 232,754.88 and 49,956.32

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Solution

The fourth proportional to 155,139.68, 232,754.88 and 49,956.32 is: 74,949.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,139.68 : 232,754.88 = 49,956.32 : x
  2. Step 2: Convert to fraction form
    155,139.68/232,754.88 = 49,956.32/x
  3. Step 3: Cross multiply
    155,139.68x = 232,754.88 × 49,956.32
  4. Step 4: Simplify right side
    155,139.68x = 11,627,577,266.84
  5. Step 5: Solve for x
    x = 11,627,577,266.84/155,139.68
  6. Step 6: Final answer
    x = 74,949.09

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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.