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Finding the Fourth Proportional to 167,407.61, 231,024.20 and 90,927.45

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Solution

The fourth proportional to 167,407.61, 231,024.20 and 90,927.45 is: 125,480.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,407.61 : 231,024.20 = 90,927.45 : x
  2. Step 2: Convert to fraction form
    167,407.61/231,024.20 = 90,927.45/x
  3. Step 3: Cross multiply
    167,407.61x = 231,024.20 × 90,927.45
  4. Step 4: Simplify right side
    167,407.61x = 21,006,440,239.17
  5. Step 5: Solve for x
    x = 21,006,440,239.17/167,407.61
  6. Step 6: Final answer
    x = 125,480.80

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1.5x scale

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.