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Finding the Fourth Proportional to 220,434.51, 303,773.04 and 148,689.84

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Solution

The fourth proportional to 220,434.51, 303,773.04 and 148,689.84 is: 204,904.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,434.51 : 303,773.04 = 148,689.84 : x
  2. Step 2: Convert to fraction form
    220,434.51/303,773.04 = 148,689.84/x
  3. Step 3: Cross multiply
    220,434.51x = 303,773.04 × 148,689.84
  4. Step 4: Simplify right side
    220,434.51x = 45,167,964,713.91
  5. Step 5: Solve for x
    x = 45,167,964,713.91/220,434.51
  6. Step 6: Final answer
    x = 204,904.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.