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Finding the Fourth Proportional to 167,321.91, 230,897.38 and 90,838.04

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Solution

The fourth proportional to 167,321.91, 230,897.38 and 90,838.04 is: 125,352.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,321.91 : 230,897.38 = 90,838.04 : x
  2. Step 2: Convert to fraction form
    167,321.91/230,897.38 = 90,838.04/x
  3. Step 3: Cross multiply
    167,321.91x = 230,897.38 × 90,838.04
  4. Step 4: Simplify right side
    167,321.91x = 20,974,265,440.34
  5. Step 5: Solve for x
    x = 20,974,265,440.34/167,321.91
  6. Step 6: Final answer
    x = 125,352.77

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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.