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Finding the Fourth Proportional to 368,418.56, 551,904.68 and 191,041.52

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Solution

The fourth proportional to 368,418.56, 551,904.68 and 191,041.52 is: 286,187.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,418.56 : 551,904.68 = 191,041.52 : x
  2. Step 2: Convert to fraction form
    368,418.56/551,904.68 = 191,041.52/x
  3. Step 3: Cross multiply
    368,418.56x = 551,904.68 × 191,041.52
  4. Step 4: Simplify right side
    368,418.56x = 105,436,708,962.31
  5. Step 5: Solve for x
    x = 105,436,708,962.31/368,418.56
  6. Step 6: Final answer
    x = 286,187.29

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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.