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Finding the Fourth Proportional to 188,529, 260,176.10 and 103,652.20

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Solution

The fourth proportional to 188,529, 260,176.10 and 103,652.20 is: 143,043.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,529 : 260,176.10 = 103,652.20 : x
  2. Step 2: Convert to fraction form
    188,529/260,176.10 = 103,652.20/x
  3. Step 3: Cross multiply
    188,529x = 260,176.10 × 103,652.20
  4. Step 4: Simplify right side
    188,529x = 26,967,825,152.42
  5. Step 5: Solve for x
    x = 26,967,825,152.42/188,529
  6. Step 6: Final answer
    x = 143,043.38

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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.