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Finding the Fourth Proportional to 197,406.72, 295,971.84 and 72,714.24

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Solution

The fourth proportional to 197,406.72, 295,971.84 and 72,714.24 is: 109,020.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,406.72 : 295,971.84 = 72,714.24 : x
  2. Step 2: Convert to fraction form
    197,406.72/295,971.84 = 72,714.24/x
  3. Step 3: Cross multiply
    197,406.72x = 295,971.84 × 72,714.24
  4. Step 4: Simplify right side
    197,406.72x = 21,521,367,407.00
  5. Step 5: Solve for x
    x = 21,521,367,407.00/197,406.72
  6. Step 6: Final answer
    x = 109,020.44

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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.