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Finding the Fourth Proportional to 68,341,657.20, 102,512,485.80 and 32,509,849.20

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Solution

The fourth proportional to 68,341,657.20, 102,512,485.80 and 32,509,849.20 is: 48,764,773.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,341,657.20 : 102,512,485.80 = 32,509,849.20 : x
  2. Step 2: Convert to fraction form
    68,341,657.20/102,512,485.80 = 32,509,849.20/x
  3. Step 3: Cross multiply
    68,341,657.20x = 102,512,485.80 × 32,509,849.20
  4. Step 4: Simplify right side
    68,341,657.20x = 3,332,665,454,475,141
  5. Step 5: Solve for x
    x = 3,332,665,454,475,141/68,341,657.20
  6. Step 6: Final answer
    x = 48,764,773.80

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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.