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Finding the Fourth Proportional to 188,776.27, 260,511.10 and 103,893.40

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Solution

The fourth proportional to 188,776.27, 260,511.10 and 103,893.40 is: 143,372.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,776.27 : 260,511.10 = 103,893.40 : x
  2. Step 2: Convert to fraction form
    188,776.27/260,511.10 = 103,893.40/x
  3. Step 3: Cross multiply
    188,776.27x = 260,511.10 × 103,893.40
  4. Step 4: Simplify right side
    188,776.27x = 27,065,383,916.74
  5. Step 5: Solve for x
    x = 27,065,383,916.74/188,776.27
  6. Step 6: Final answer
    x = 143,372.81

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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.