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Finding the Fourth Proportional to 221,637.64, 332,360.32 and 121,767.88

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Solution

The fourth proportional to 221,637.64, 332,360.32 and 121,767.88 is: 182,599.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,637.64 : 332,360.32 = 121,767.88 : x
  2. Step 2: Convert to fraction form
    221,637.64/332,360.32 = 121,767.88/x
  3. Step 3: Cross multiply
    221,637.64x = 332,360.32 × 121,767.88
  4. Step 4: Simplify right side
    221,637.64x = 40,470,811,562.52
  5. Step 5: Solve for x
    x = 40,470,811,562.52/221,637.64
  6. Step 6: Final answer
    x = 182,599.00

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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.