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Finding the Fourth Proportional to 368,196.36, 551,994.84 and 115,346.76

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Solution

The fourth proportional to 368,196.36, 551,994.84 and 115,346.76 is: 172,926.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,196.36 : 551,994.84 = 115,346.76 : x
  2. Step 2: Convert to fraction form
    368,196.36/551,994.84 = 115,346.76/x
  3. Step 3: Cross multiply
    368,196.36x = 551,994.84 × 115,346.76
  4. Step 4: Simplify right side
    368,196.36x = 63,670,816,330.72
  5. Step 5: Solve for x
    x = 63,670,816,330.72/368,196.36
  6. Step 6: Final answer
    x = 172,926.25

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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.