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Finding the Fourth Proportional to 216,614.64, 324,426.12 and 132,188.93

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Solution

The fourth proportional to 216,614.64, 324,426.12 and 132,188.93 is: 197,980.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,614.64 : 324,426.12 = 132,188.93 : x
  2. Step 2: Convert to fraction form
    216,614.64/324,426.12 = 132,188.93/x
  3. Step 3: Cross multiply
    216,614.64x = 324,426.12 × 132,188.93
  4. Step 4: Simplify right side
    216,614.64x = 42,885,540,044.72
  5. Step 5: Solve for x
    x = 42,885,540,044.72/216,614.64
  6. Step 6: Final answer
    x = 197,980.80

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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.