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Finding the Fourth Proportional to 150,152.62, 207,210.62 and 82,169.60

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Solution

The fourth proportional to 150,152.62, 207,210.62 and 82,169.60 is: 113,394.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,152.62 : 207,210.62 = 82,169.60 : x
  2. Step 2: Convert to fraction form
    150,152.62/207,210.62 = 82,169.60/x
  3. Step 3: Cross multiply
    150,152.62x = 207,210.62 × 82,169.60
  4. Step 4: Simplify right side
    150,152.62x = 17,026,413,761.15
  5. Step 5: Solve for x
    x = 17,026,413,761.15/150,152.62
  6. Step 6: Final answer
    x = 113,394.05

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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.