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Finding the Fourth Proportional to 167,407.89, 231,024.56 and 90,928.48

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Solution

The fourth proportional to 167,407.89, 231,024.56 and 90,928.48 is: 125,482.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,407.89 : 231,024.56 = 90,928.48 : x
  2. Step 2: Convert to fraction form
    167,407.89/231,024.56 = 90,928.48/x
  3. Step 3: Cross multiply
    167,407.89x = 231,024.56 × 90,928.48
  4. Step 4: Simplify right side
    167,407.89x = 21,006,710,928.35
  5. Step 5: Solve for x
    x = 21,006,710,928.35/167,407.89
  6. Step 6: Final answer
    x = 125,482.21

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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.