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Finding the Fourth Proportional to 216,465,225.60, 324,743,781.60 and 70,888,033.92

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Solution

The fourth proportional to 216,465,225.60, 324,743,781.60 and 70,888,033.92 is: 106,347,096.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,465,225.60 : 324,743,781.60 = 70,888,033.92 : x
  2. Step 2: Convert to fraction form
    216,465,225.60/324,743,781.60 = 70,888,033.92/x
  3. Step 3: Cross multiply
    216,465,225.60x = 324,743,781.60 × 70,888,033.92
  4. Step 4: Simplify right side
    216,465,225.60x = 23,020,448,205,369,876
  5. Step 5: Solve for x
    x = 23,020,448,205,369,876/216,465,225.60
  6. Step 6: Final answer
    x = 106,347,096.36

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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.