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Finding the Fourth Proportional to 206,994.28, 310,231.68 and 88,526.32

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Solution

The fourth proportional to 206,994.28, 310,231.68 and 88,526.32 is: 132,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,994.28 : 310,231.68 = 88,526.32 : x
  2. Step 2: Convert to fraction form
    206,994.28/310,231.68 = 88,526.32/x
  3. Step 3: Cross multiply
    206,994.28x = 310,231.68 × 88,526.32
  4. Step 4: Simplify right side
    206,994.28x = 27,463,668,977.82
  5. Step 5: Solve for x
    x = 27,463,668,977.82/206,994.28
  6. Step 6: Final answer
    x = 132,678.40

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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.