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Finding the Fourth Proportional to 220,950.12, 304,814.10 and 149,304.04

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Solution

The fourth proportional to 220,950.12, 304,814.10 and 149,304.04 is: 205,973.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,950.12 : 304,814.10 = 149,304.04 : x
  2. Step 2: Convert to fraction form
    220,950.12/304,814.10 = 149,304.04/x
  3. Step 3: Cross multiply
    220,950.12x = 304,814.10 × 149,304.04
  4. Step 4: Simplify right side
    220,950.12x = 45,509,976,578.96
  5. Step 5: Solve for x
    x = 45,509,976,578.96/220,950.12
  6. Step 6: Final answer
    x = 205,973.98

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1.5x scale

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.