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Finding the Fourth Proportional to 368,174.40, 551,872.80 and 210,062.40

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Solution

The fourth proportional to 368,174.40, 551,872.80 and 210,062.40 is: 314,871.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,174.40 : 551,872.80 = 210,062.40 : x
  2. Step 2: Convert to fraction form
    368,174.40/551,872.80 = 210,062.40/x
  3. Step 3: Cross multiply
    368,174.40x = 551,872.80 × 210,062.40
  4. Step 4: Simplify right side
    368,174.40x = 115,927,724,862.72
  5. Step 5: Solve for x
    x = 115,927,724,862.72/368,174.40
  6. Step 6: Final answer
    x = 314,871.77

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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.