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Finding the Fourth Proportional to 220,996.45, 304,895.13 and 144,559.18

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Solution

The fourth proportional to 220,996.45, 304,895.13 and 144,559.18 is: 199,439.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,996.45 : 304,895.13 = 144,559.18 : x
  2. Step 2: Convert to fraction form
    220,996.45/304,895.13 = 144,559.18/x
  3. Step 3: Cross multiply
    220,996.45x = 304,895.13 × 144,559.18
  4. Step 4: Simplify right side
    220,996.45x = 44,075,388,454.32
  5. Step 5: Solve for x
    x = 44,075,388,454.32/220,996.45
  6. Step 6: Final answer
    x = 199,439.36

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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.