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Finding the Fourth Proportional to 203,219.70, 304,829.55 and 124,422.90

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Solution

The fourth proportional to 203,219.70, 304,829.55 and 124,422.90 is: 186,634.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,219.70 : 304,829.55 = 124,422.90 : x
  2. Step 2: Convert to fraction form
    203,219.70/304,829.55 = 124,422.90/x
  3. Step 3: Cross multiply
    203,219.70x = 304,829.55 × 124,422.90
  4. Step 4: Simplify right side
    203,219.70x = 37,927,776,616.70
  5. Step 5: Solve for x
    x = 37,927,776,616.70/203,219.70
  6. Step 6: Final answer
    x = 186,634.35

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1.5x scale

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.