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Finding the Fourth Proportional to 188,843.40, 283,265.10 and 109,017.90

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Solution

The fourth proportional to 188,843.40, 283,265.10 and 109,017.90 is: 163,526.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,843.40 : 283,265.10 = 109,017.90 : x
  2. Step 2: Convert to fraction form
    188,843.40/283,265.10 = 109,017.90/x
  3. Step 3: Cross multiply
    188,843.40x = 283,265.10 × 109,017.90
  4. Step 4: Simplify right side
    188,843.40x = 30,880,966,345.29
  5. Step 5: Solve for x
    x = 30,880,966,345.29/188,843.40
  6. Step 6: Final answer
    x = 163,526.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.