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Finding the Fourth Proportional to 188,443.20, 282,664.80 and 186,474.90

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Solution

The fourth proportional to 188,443.20, 282,664.80 and 186,474.90 is: 279,712.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,443.20 : 282,664.80 = 186,474.90 : x
  2. Step 2: Convert to fraction form
    188,443.20/282,664.80 = 186,474.90/x
  3. Step 3: Cross multiply
    188,443.20x = 282,664.80 × 186,474.90
  4. Step 4: Simplify right side
    188,443.20x = 52,709,890,313.52
  5. Step 5: Solve for x
    x = 52,709,890,313.52/188,443.20
  6. Step 6: Final answer
    x = 279,712.35

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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.