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Finding the Fourth Proportional to 216,523.82, 298,803.22 and 121,030.42

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Solution

The fourth proportional to 216,523.82, 298,803.22 and 121,030.42 is: 167,022.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,523.82 : 298,803.22 = 121,030.42 : x
  2. Step 2: Convert to fraction form
    216,523.82/298,803.22 = 121,030.42/x
  3. Step 3: Cross multiply
    216,523.82x = 298,803.22 × 121,030.42
  4. Step 4: Simplify right side
    216,523.82x = 36,164,279,213.95
  5. Step 5: Solve for x
    x = 36,164,279,213.95/216,523.82
  6. Step 6: Final answer
    x = 167,022.17

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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.