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Finding the Fourth Proportional to 368,493.38, 551,854.32 and 210,242.06

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Solution

The fourth proportional to 368,493.38, 551,854.32 and 210,242.06 is: 314,857.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,493.38 : 551,854.32 = 210,242.06 : x
  2. Step 2: Convert to fraction form
    368,493.38/551,854.32 = 210,242.06/x
  3. Step 3: Cross multiply
    368,493.38x = 551,854.32 × 210,242.06
  4. Step 4: Simplify right side
    368,493.38x = 116,022,989,056.70
  5. Step 5: Solve for x
    x = 116,022,989,056.70/368,493.38
  6. Step 6: Final answer
    x = 314,857.73

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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.