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Finding the Fourth Proportional to 100,602,023.80, 150,903,035.70 and 68,077,834.60

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Solution

The fourth proportional to 100,602,023.80, 150,903,035.70 and 68,077,834.60 is: 102,116,751.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,602,023.80 : 150,903,035.70 = 68,077,834.60 : x
  2. Step 2: Convert to fraction form
    100,602,023.80/150,903,035.70 = 68,077,834.60/x
  3. Step 3: Cross multiply
    100,602,023.80x = 150,903,035.70 × 68,077,834.60
  4. Step 4: Simplify right side
    100,602,023.80x = 10,273,151,905,022,494
  5. Step 5: Solve for x
    x = 10,273,151,905,022,494/100,602,023.80
  6. Step 6: Final answer
    x = 102,116,751.90

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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.