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Finding the Fourth Proportional to 221,463.34, 332,341.57 and 121,693.01

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Solution

The fourth proportional to 221,463.34, 332,341.57 and 121,693.01 is: 182,620.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,463.34 : 332,341.57 = 121,693.01 : x
  2. Step 2: Convert to fraction form
    221,463.34/332,341.57 = 121,693.01/x
  3. Step 3: Cross multiply
    221,463.34x = 332,341.57 × 121,693.01
  4. Step 4: Simplify right side
    221,463.34x = 40,443,645,768.81
  5. Step 5: Solve for x
    x = 40,443,645,768.81/221,463.34
  6. Step 6: Final answer
    x = 182,620.05

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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.