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Finding the Fourth Proportional to 191,551.64, 287,581.39 and 163,650.98

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Solution

The fourth proportional to 191,551.64, 287,581.39 and 163,650.98 is: 245,693.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,551.64 : 287,581.39 = 163,650.98 : x
  2. Step 2: Convert to fraction form
    191,551.64/287,581.39 = 163,650.98/x
  3. Step 3: Cross multiply
    191,551.64x = 287,581.39 × 163,650.98
  4. Step 4: Simplify right side
    191,551.64x = 47,062,976,613.09
  5. Step 5: Solve for x
    x = 47,062,976,613.09/191,551.64
  6. Step 6: Final answer
    x = 245,693.42

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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.