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Finding the Fourth Proportional to 203,221.70, 304,832.55 and 124,424.90

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Solution

The fourth proportional to 203,221.70, 304,832.55 and 124,424.90 is: 186,637.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,221.70 : 304,832.55 = 124,424.90 : x
  2. Step 2: Convert to fraction form
    203,221.70/304,832.55 = 124,424.90/x
  3. Step 3: Cross multiply
    203,221.70x = 304,832.55 × 124,424.90
  4. Step 4: Simplify right side
    203,221.70x = 37,928,759,550.50
  5. Step 5: Solve for x
    x = 37,928,759,550.50/203,221.70
  6. Step 6: Final answer
    x = 186,637.35

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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.