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Finding the Fourth Proportional to 220,667.48, 330,742.01 and 102,088.34

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Solution

The fourth proportional to 220,667.48, 330,742.01 and 102,088.34 is: 153,012.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,667.48 : 330,742.01 = 102,088.34 : x
  2. Step 2: Convert to fraction form
    220,667.48/330,742.01 = 102,088.34/x
  3. Step 3: Cross multiply
    220,667.48x = 330,742.01 × 102,088.34
  4. Step 4: Simplify right side
    220,667.48x = 33,764,901,370.67
  5. Step 5: Solve for x
    x = 33,764,901,370.67/220,667.48
  6. Step 6: Final answer
    x = 153,012.59

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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.