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Finding the Fourth Proportional to 150,478.46, 207,675.12 and 85,957.35

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Solution

The fourth proportional to 150,478.46, 207,675.12 and 85,957.35 is: 118,629.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,478.46 : 207,675.12 = 85,957.35 : x
  2. Step 2: Convert to fraction form
    150,478.46/207,675.12 = 85,957.35/x
  3. Step 3: Cross multiply
    150,478.46x = 207,675.12 × 85,957.35
  4. Step 4: Simplify right side
    150,478.46x = 17,851,202,519.69
  5. Step 5: Solve for x
    x = 17,851,202,519.69/150,478.46
  6. Step 6: Final answer
    x = 118,629.62

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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.