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Finding the Fourth Proportional to 105,805.88, 158,631.04 and 50,440.76

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Solution

The fourth proportional to 105,805.88, 158,631.04 and 50,440.76 is: 75,624.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,805.88 : 158,631.04 = 50,440.76 : x
  2. Step 2: Convert to fraction form
    105,805.88/158,631.04 = 50,440.76/x
  3. Step 3: Cross multiply
    105,805.88x = 158,631.04 × 50,440.76
  4. Step 4: Simplify right side
    105,805.88x = 8,001,470,217.19
  5. Step 5: Solve for x
    x = 8,001,470,217.19/105,805.88
  6. Step 6: Final answer
    x = 75,624.06

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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.