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Finding the Fourth Proportional to 368,176.92, 551,379.64 and 209,925.60

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Solution

The fourth proportional to 368,176.92, 551,379.64 and 209,925.60 is: 314,383.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,176.92 : 551,379.64 = 209,925.60 : x
  2. Step 2: Convert to fraction form
    368,176.92/551,379.64 = 209,925.60/x
  3. Step 3: Cross multiply
    368,176.92x = 551,379.64 × 209,925.60
  4. Step 4: Simplify right side
    368,176.92x = 115,748,701,754.78
  5. Step 5: Solve for x
    x = 115,748,701,754.78/368,176.92
  6. Step 6: Final answer
    x = 314,383.37

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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.