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Finding the Fourth Proportional to 191,415.75, 287,126.35 and 73,093.58

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Solution

The fourth proportional to 191,415.75, 287,126.35 and 73,093.58 is: 109,641.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,415.75 : 287,126.35 = 73,093.58 : x
  2. Step 2: Convert to fraction form
    191,415.75/287,126.35 = 73,093.58/x
  3. Step 3: Cross multiply
    191,415.75x = 287,126.35 × 73,093.58
  4. Step 4: Simplify right side
    191,415.75x = 20,987,092,833.83
  5. Step 5: Solve for x
    x = 20,987,092,833.83/191,415.75
  6. Step 6: Final answer
    x = 109,641.41

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1.5x scale

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.