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Finding the Fourth Proportional to 216,809.40, 325,133.19 and 74,614.89

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Solution

The fourth proportional to 216,809.40, 325,133.19 and 74,614.89 is: 111,894.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,809.40 : 325,133.19 = 74,614.89 : x
  2. Step 2: Convert to fraction form
    216,809.40/325,133.19 = 74,614.89/x
  3. Step 3: Cross multiply
    216,809.40x = 325,133.19 × 74,614.89
  4. Step 4: Simplify right side
    216,809.40x = 24,259,777,207.20
  5. Step 5: Solve for x
    x = 24,259,777,207.20/216,809.40
  6. Step 6: Final answer
    x = 111,894.49

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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.