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Finding the Fourth Proportional to 92,005.80, 138,008.67 and 29,676.30

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Solution

The fourth proportional to 92,005.80, 138,008.67 and 29,676.30 is: 44,514.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,005.80 : 138,008.67 = 29,676.30 : x
  2. Step 2: Convert to fraction form
    92,005.80/138,008.67 = 29,676.30/x
  3. Step 3: Cross multiply
    92,005.80x = 138,008.67 × 29,676.30
  4. Step 4: Simplify right side
    92,005.80x = 4,095,586,693.52
  5. Step 5: Solve for x
    x = 4,095,586,693.52/92,005.80
  6. Step 6: Final answer
    x = 44,514.44

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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.