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Finding the Fourth Proportional to 221,454.40, 332,181.60 and 73,710.40

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Solution

The fourth proportional to 221,454.40, 332,181.60 and 73,710.40 is: 110,565.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,454.40 : 332,181.60 = 73,710.40 : x
  2. Step 2: Convert to fraction form
    221,454.40/332,181.60 = 73,710.40/x
  3. Step 3: Cross multiply
    221,454.40x = 332,181.60 × 73,710.40
  4. Step 4: Simplify right side
    221,454.40x = 24,485,238,608.64
  5. Step 5: Solve for x
    x = 24,485,238,608.64/221,454.40
  6. Step 6: Final answer
    x = 110,565.60

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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.