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Finding the Fourth Proportional to 191,714.91, 287,572.57 and 191,438.03

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Solution

The fourth proportional to 191,714.91, 287,572.57 and 191,438.03 is: 287,157.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,714.91 : 287,572.57 = 191,438.03 : x
  2. Step 2: Convert to fraction form
    191,714.91/287,572.57 = 191,438.03/x
  3. Step 3: Cross multiply
    191,714.91x = 287,572.57 × 191,438.03
  4. Step 4: Simplify right side
    191,714.91x = 55,052,326,282.84
  5. Step 5: Solve for x
    x = 55,052,326,282.84/191,714.91
  6. Step 6: Final answer
    x = 287,157.25

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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.