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Finding the Fourth Proportional to 217,267.20, 325,900.80 and 146,408.40

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Solution

The fourth proportional to 217,267.20, 325,900.80 and 146,408.40 is: 219,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,267.20 : 325,900.80 = 146,408.40 : x
  2. Step 2: Convert to fraction form
    217,267.20/325,900.80 = 146,408.40/x
  3. Step 3: Cross multiply
    217,267.20x = 325,900.80 × 146,408.40
  4. Step 4: Simplify right side
    217,267.20x = 47,714,614,686.72
  5. Step 5: Solve for x
    x = 47,714,614,686.72/217,267.20
  6. Step 6: Final answer
    x = 219,612.60

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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.