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Finding the Fourth Proportional to 150,438.50, 207,699.51 and 96,816.71

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Solution

The fourth proportional to 150,438.50, 207,699.51 and 96,816.71 is: 133,667.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,438.50 : 207,699.51 = 96,816.71 : x
  2. Step 2: Convert to fraction form
    150,438.50/207,699.51 = 96,816.71/x
  3. Step 3: Cross multiply
    150,438.50x = 207,699.51 × 96,816.71
  4. Step 4: Simplify right side
    150,438.50x = 20,108,782,188.31
  5. Step 5: Solve for x
    x = 20,108,782,188.31/150,438.50
  6. Step 6: Final answer
    x = 133,667.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.