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Finding the Fourth Proportional to 368,492.90, 551,853.56 and 210,241.58

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Solution

The fourth proportional to 368,492.90, 551,853.56 and 210,241.58 is: 314,856.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,492.90 : 551,853.56 = 210,241.58 : x
  2. Step 2: Convert to fraction form
    368,492.90/551,853.56 = 210,241.58/x
  3. Step 3: Cross multiply
    368,492.90x = 551,853.56 × 210,241.58
  4. Step 4: Simplify right side
    368,492.90x = 116,022,562,149.36
  5. Step 5: Solve for x
    x = 116,022,562,149.36/368,492.90
  6. Step 6: Final answer
    x = 314,856.99

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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.