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Finding the Fourth Proportional to 539,067.15, 808,363.89 and 201,871.31

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Solution

The fourth proportional to 539,067.15, 808,363.89 and 201,871.31 is: 302,718.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,067.15 : 808,363.89 = 201,871.31 : x
  2. Step 2: Convert to fraction form
    539,067.15/808,363.89 = 201,871.31/x
  3. Step 3: Cross multiply
    539,067.15x = 808,363.89 × 201,871.31
  4. Step 4: Simplify right side
    539,067.15x = 163,185,473,389.18
  5. Step 5: Solve for x
    x = 163,185,473,389.18/539,067.15
  6. Step 6: Final answer
    x = 302,718.27

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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.