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Finding the Fourth Proportional to 216,638.91, 298,956.10 and 119,840.24

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Solution

The fourth proportional to 216,638.91, 298,956.10 and 119,840.24 is: 165,376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,638.91 : 298,956.10 = 119,840.24 : x
  2. Step 2: Convert to fraction form
    216,638.91/298,956.10 = 119,840.24/x
  3. Step 3: Cross multiply
    216,638.91x = 298,956.10 × 119,840.24
  4. Step 4: Simplify right side
    216,638.91x = 35,826,970,885.41
  5. Step 5: Solve for x
    x = 35,826,970,885.41/216,638.91
  6. Step 6: Final answer
    x = 165,376.44

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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.