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Finding the Fourth Proportional to 193,641.38, 290,511.35 and 113,746.91

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Solution

The fourth proportional to 193,641.38, 290,511.35 and 113,746.91 is: 170,649.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,641.38 : 290,511.35 = 113,746.91 : x
  2. Step 2: Convert to fraction form
    193,641.38/290,511.35 = 113,746.91/x
  3. Step 3: Cross multiply
    193,641.38x = 290,511.35 × 113,746.91
  4. Step 4: Simplify right side
    193,641.38x = 33,044,766,787.69
  5. Step 5: Solve for x
    x = 33,044,766,787.69/193,641.38
  6. Step 6: Final answer
    x = 170,649.31

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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.