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Finding the Fourth Proportional to 221,863.02, 306,311.30 and 170,779.72

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Solution

The fourth proportional to 221,863.02, 306,311.30 and 170,779.72 is: 235,784.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,863.02 : 306,311.30 = 170,779.72 : x
  2. Step 2: Convert to fraction form
    221,863.02/306,311.30 = 170,779.72/x
  3. Step 3: Cross multiply
    221,863.02x = 306,311.30 × 170,779.72
  4. Step 4: Simplify right side
    221,863.02x = 52,311,758,046.84
  5. Step 5: Solve for x
    x = 52,311,758,046.84/221,863.02
  6. Step 6: Final answer
    x = 235,784.03

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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.