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Finding the Fourth Proportional to 191,449.08, 287,698.26 and 180,579.64

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Solution

The fourth proportional to 191,449.08, 287,698.26 and 180,579.64 is: 271,364.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,449.08 : 287,698.26 = 180,579.64 : x
  2. Step 2: Convert to fraction form
    191,449.08/287,698.26 = 180,579.64/x
  3. Step 3: Cross multiply
    191,449.08x = 287,698.26 × 180,579.64
  4. Step 4: Simplify right side
    191,449.08x = 51,952,448,219.43
  5. Step 5: Solve for x
    x = 51,952,448,219.43/191,449.08
  6. Step 6: Final answer
    x = 271,364.31

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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.