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Finding the Fourth Proportional to 92,443.70, 138,686.31 and 29,267.60

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Solution

The fourth proportional to 92,443.70, 138,686.31 and 29,267.60 is: 43,907.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,443.70 : 138,686.31 = 29,267.60 : x
  2. Step 2: Convert to fraction form
    92,443.70/138,686.31 = 29,267.60/x
  3. Step 3: Cross multiply
    92,443.70x = 138,686.31 × 29,267.60
  4. Step 4: Simplify right side
    92,443.70x = 4,059,014,753.12
  5. Step 5: Solve for x
    x = 4,059,014,753.12/92,443.70
  6. Step 6: Final answer
    x = 43,907.96

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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.