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Finding the Fourth Proportional to 216,602.60, 324,925.61 and 74,429.15

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Solution

The fourth proportional to 216,602.60, 324,925.61 and 74,429.15 is: 111,651.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,602.60 : 324,925.61 = 74,429.15 : x
  2. Step 2: Convert to fraction form
    216,602.60/324,925.61 = 74,429.15/x
  3. Step 3: Cross multiply
    216,602.60x = 324,925.61 × 74,429.15
  4. Step 4: Simplify right side
    216,602.60x = 24,183,936,965.53
  5. Step 5: Solve for x
    x = 24,183,936,965.53/216,602.60
  6. Step 6: Final answer
    x = 111,651.19

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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.