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Finding the Fourth Proportional to 150,458.99, 207,639.77 and 85,938.84

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Solution

The fourth proportional to 150,458.99, 207,639.77 and 85,938.84 is: 118,599.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,458.99 : 207,639.77 = 85,938.84 : x
  2. Step 2: Convert to fraction form
    150,458.99/207,639.77 = 85,938.84/x
  3. Step 3: Cross multiply
    150,458.99x = 207,639.77 × 85,938.84
  4. Step 4: Simplify right side
    150,458.99x = 17,844,321,320.62
  5. Step 5: Solve for x
    x = 17,844,321,320.62/150,458.99
  6. Step 6: Final answer
    x = 118,599.24

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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.