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Finding the Fourth Proportional to 150,438.89, 207,578.44 and 96,711.59

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Solution

The fourth proportional to 150,438.89, 207,578.44 and 96,711.59 is: 133,444.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,438.89 : 207,578.44 = 96,711.59 : x
  2. Step 2: Convert to fraction form
    150,438.89/207,578.44 = 96,711.59/x
  3. Step 3: Cross multiply
    150,438.89x = 207,578.44 × 96,711.59
  4. Step 4: Simplify right side
    150,438.89x = 20,075,240,982.12
  5. Step 5: Solve for x
    x = 20,075,240,982.12/150,438.89
  6. Step 6: Final answer
    x = 133,444.49

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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.