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Finding the Fourth Proportional to 167,376.47, 230,978.82 and 90,895.04

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Solution

The fourth proportional to 167,376.47, 230,978.82 and 90,895.04 is: 125,434.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,376.47 : 230,978.82 = 90,895.04 : x
  2. Step 2: Convert to fraction form
    167,376.47/230,978.82 = 90,895.04/x
  3. Step 3: Cross multiply
    167,376.47x = 230,978.82 × 90,895.04
  4. Step 4: Simplify right side
    167,376.47x = 20,994,827,928.16
  5. Step 5: Solve for x
    x = 20,994,827,928.16/167,376.47
  6. Step 6: Final answer
    x = 125,434.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.