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Finding the Fourth Proportional to 216,599.60, 324,921.11 and 74,426.15

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Solution

The fourth proportional to 216,599.60, 324,921.11 and 74,426.15 is: 111,646.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,599.60 : 324,921.11 = 74,426.15 : x
  2. Step 2: Convert to fraction form
    216,599.60/324,921.11 = 74,426.15/x
  3. Step 3: Cross multiply
    216,599.60x = 324,921.11 × 74,426.15
  4. Step 4: Simplify right side
    216,599.60x = 24,182,627,271.03
  5. Step 5: Solve for x
    x = 24,182,627,271.03/216,599.60
  6. Step 6: Final answer
    x = 111,646.68

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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.