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Finding the Fourth Proportional to 101,621.58, 152,430.21 and 27,749.58

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Solution

The fourth proportional to 101,621.58, 152,430.21 and 27,749.58 is: 41,623.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,621.58 : 152,430.21 = 27,749.58 : x
  2. Step 2: Convert to fraction form
    101,621.58/152,430.21 = 27,749.58/x
  3. Step 3: Cross multiply
    101,621.58x = 152,430.21 × 27,749.58
  4. Step 4: Simplify right side
    101,621.58x = 4,229,874,306.81
  5. Step 5: Solve for x
    x = 4,229,874,306.81/101,621.58
  6. Step 6: Final answer
    x = 41,623.78

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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.