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Finding the Fourth Proportional to 200,746.80, 301,118.78 and 50,987.52

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Solution

The fourth proportional to 200,746.80, 301,118.78 and 50,987.52 is: 76,480.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,746.80 : 301,118.78 = 50,987.52 : x
  2. Step 2: Convert to fraction form
    200,746.80/301,118.78 = 50,987.52/x
  3. Step 3: Cross multiply
    200,746.80x = 301,118.78 × 50,987.52
  4. Step 4: Simplify right side
    200,746.80x = 15,353,299,945.09
  5. Step 5: Solve for x
    x = 15,353,299,945.09/200,746.80
  6. Step 6: Final answer
    x = 76,480.92

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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.