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Finding the Fourth Proportional to 105,469.76, 158,225.79 and 38,910.23

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Solution

The fourth proportional to 105,469.76, 158,225.79 and 38,910.23 is: 58,373.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,469.76 : 158,225.79 = 38,910.23 : x
  2. Step 2: Convert to fraction form
    105,469.76/158,225.79 = 38,910.23/x
  3. Step 3: Cross multiply
    105,469.76x = 158,225.79 × 38,910.23
  4. Step 4: Simplify right side
    105,469.76x = 6,156,601,089.70
  5. Step 5: Solve for x
    x = 6,156,601,089.70/105,469.76
  6. Step 6: Final answer
    x = 58,373.14

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1.5x scale

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.