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Finding the Fourth Proportional to 155,970.84, 233,956.31 and 43,667.61

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Solution

The fourth proportional to 155,970.84, 233,956.31 and 43,667.61 is: 65,501.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,970.84 : 233,956.31 = 43,667.61 : x
  2. Step 2: Convert to fraction form
    155,970.84/233,956.31 = 43,667.61/x
  3. Step 3: Cross multiply
    155,970.84x = 233,956.31 × 43,667.61
  4. Step 4: Simplify right side
    155,970.84x = 10,216,311,806.44
  5. Step 5: Solve for x
    x = 10,216,311,806.44/155,970.84
  6. Step 6: Final answer
    x = 65,501.42

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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.