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Finding the Fourth Proportional to 105,751.76, 158,631.96 and 26,868.02

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Solution

The fourth proportional to 105,751.76, 158,631.96 and 26,868.02 is: 40,303.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,751.76 : 158,631.96 = 26,868.02 : x
  2. Step 2: Convert to fraction form
    105,751.76/158,631.96 = 26,868.02/x
  3. Step 3: Cross multiply
    105,751.76x = 158,631.96 × 26,868.02
  4. Step 4: Simplify right side
    105,751.76x = 4,262,126,673.92
  5. Step 5: Solve for x
    x = 4,262,126,673.92/105,751.76
  6. Step 6: Final answer
    x = 40,303.13

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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.