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Finding the Fourth Proportional to 200,579.80, 300,950.70 and 88,281.40

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Solution

The fourth proportional to 200,579.80, 300,950.70 and 88,281.40 is: 132,457.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,579.80 : 300,950.70 = 88,281.40 : x
  2. Step 2: Convert to fraction form
    200,579.80/300,950.70 = 88,281.40/x
  3. Step 3: Cross multiply
    200,579.80x = 300,950.70 × 88,281.40
  4. Step 4: Simplify right side
    200,579.80x = 26,568,349,126.98
  5. Step 5: Solve for x
    x = 26,568,349,126.98/200,579.80
  6. Step 6: Final answer
    x = 132,457.75

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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.