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Finding the Fourth Proportional to 216,733.22, 299,103.46 and 121,234.22

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Solution

The fourth proportional to 216,733.22, 299,103.46 and 121,234.22 is: 167,309.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,733.22 : 299,103.46 = 121,234.22 : x
  2. Step 2: Convert to fraction form
    216,733.22/299,103.46 = 121,234.22/x
  3. Step 3: Cross multiply
    216,733.22x = 299,103.46 × 121,234.22
  4. Step 4: Simplify right side
    216,733.22x = 36,261,574,672.40
  5. Step 5: Solve for x
    x = 36,261,574,672.40/216,733.22
  6. Step 6: Final answer
    x = 167,309.72

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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.