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Finding the Fourth Proportional to 368,492.38, 551,852.82 and 210,241.06

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Solution

The fourth proportional to 368,492.38, 551,852.82 and 210,241.06 is: 314,856.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,492.38 : 551,852.82 = 210,241.06 : x
  2. Step 2: Convert to fraction form
    368,492.38/551,852.82 = 210,241.06/x
  3. Step 3: Cross multiply
    368,492.38x = 551,852.82 × 210,241.06
  4. Step 4: Simplify right side
    368,492.38x = 116,022,121,840.79
  5. Step 5: Solve for x
    x = 116,022,121,840.79/368,492.38
  6. Step 6: Final answer
    x = 314,856.23

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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.