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Finding the Fourth Proportional to 374,720.60, 517,126.74 and 204,954.72

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Solution

The fourth proportional to 374,720.60, 517,126.74 and 204,954.72 is: 282,844.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,720.60 : 517,126.74 = 204,954.72 : x
  2. Step 2: Convert to fraction form
    374,720.60/517,126.74 = 204,954.72/x
  3. Step 3: Cross multiply
    374,720.60x = 517,126.74 × 204,954.72
  4. Step 4: Simplify right side
    374,720.60x = 105,987,566,201.21
  5. Step 5: Solve for x
    x = 105,987,566,201.21/374,720.60
  6. Step 6: Final answer
    x = 282,844.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.