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Finding the Fourth Proportional to 216,835.60, 325,277.70 and 67,074.70

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Solution

The fourth proportional to 216,835.60, 325,277.70 and 67,074.70 is: 100,619.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,835.60 : 325,277.70 = 67,074.70 : x
  2. Step 2: Convert to fraction form
    216,835.60/325,277.70 = 67,074.70/x
  3. Step 3: Cross multiply
    216,835.60x = 325,277.70 × 67,074.70
  4. Step 4: Simplify right side
    216,835.60x = 21,817,904,144.19
  5. Step 5: Solve for x
    x = 21,817,904,144.19/216,835.60
  6. Step 6: Final answer
    x = 100,619.57

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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.