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Finding the Fourth Proportional to 150,630.16, 207,862.60 and 82,645.60

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Solution

The fourth proportional to 150,630.16, 207,862.60 and 82,645.60 is: 114,047.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,630.16 : 207,862.60 = 82,645.60 : x
  2. Step 2: Convert to fraction form
    150,630.16/207,862.60 = 82,645.60/x
  3. Step 3: Cross multiply
    150,630.16x = 207,862.60 × 82,645.60
  4. Step 4: Simplify right side
    150,630.16x = 17,178,928,048.63
  5. Step 5: Solve for x
    x = 17,178,928,048.63/150,630.16
  6. Step 6: Final answer
    x = 114,047.07

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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.