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Finding the Fourth Proportional to 203,854.80, 305,782.20 and 174,330.30

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Solution

The fourth proportional to 203,854.80, 305,782.20 and 174,330.30 is: 261,495.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,854.80 : 305,782.20 = 174,330.30 : x
  2. Step 2: Convert to fraction form
    203,854.80/305,782.20 = 174,330.30/x
  3. Step 3: Cross multiply
    203,854.80x = 305,782.20 × 174,330.30
  4. Step 4: Simplify right side
    203,854.80x = 53,307,102,660.66
  5. Step 5: Solve for x
    x = 53,307,102,660.66/203,854.80
  6. Step 6: Final answer
    x = 261,495.45

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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.