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Finding the Fourth Proportional to 315,690.78, 473,532.91 and 182,486.28

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Solution

The fourth proportional to 315,690.78, 473,532.91 and 182,486.28 is: 273,727.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,690.78 : 473,532.91 = 182,486.28 : x
  2. Step 2: Convert to fraction form
    315,690.78/473,532.91 = 182,486.28/x
  3. Step 3: Cross multiply
    315,690.78x = 473,532.91 × 182,486.28
  4. Step 4: Simplify right side
    315,690.78x = 86,413,259,203.47
  5. Step 5: Solve for x
    x = 86,413,259,203.47/315,690.78
  6. Step 6: Final answer
    x = 273,727.54

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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.