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Finding the Fourth Proportional to 358,091.64, 536,653.62 and 136,354.68

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Solution

The fourth proportional to 358,091.64, 536,653.62 and 136,354.68 is: 204,347.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,091.64 : 536,653.62 = 136,354.68 : x
  2. Step 2: Convert to fraction form
    358,091.64/536,653.62 = 136,354.68/x
  3. Step 3: Cross multiply
    358,091.64x = 536,653.62 × 136,354.68
  4. Step 4: Simplify right side
    358,091.64x = 73,175,232,625.94
  5. Step 5: Solve for x
    x = 73,175,232,625.94/358,091.64
  6. Step 6: Final answer
    x = 204,347.78

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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.