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Finding the Fourth Proportional to 187,667.49, 281,509.65 and 61,315.46

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Solution

The fourth proportional to 187,667.49, 281,509.65 and 61,315.46 is: 91,975.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,667.49 : 281,509.65 = 61,315.46 : x
  2. Step 2: Convert to fraction form
    187,667.49/281,509.65 = 61,315.46/x
  3. Step 3: Cross multiply
    187,667.49x = 281,509.65 × 61,315.46
  4. Step 4: Simplify right side
    187,667.49x = 17,260,892,276.64
  5. Step 5: Solve for x
    x = 17,260,892,276.64/187,667.49
  6. Step 6: Final answer
    x = 91,975.93

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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.