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Finding the Fourth Proportional to 101,192.76, 139,658.31 and 58,751.30

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Solution

The fourth proportional to 101,192.76, 139,658.31 and 58,751.30 is: 81,083.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,192.76 : 139,658.31 = 58,751.30 : x
  2. Step 2: Convert to fraction form
    101,192.76/139,658.31 = 58,751.30/x
  3. Step 3: Cross multiply
    101,192.76x = 139,658.31 × 58,751.30
  4. Step 4: Simplify right side
    101,192.76x = 8,205,107,617.45
  5. Step 5: Solve for x
    x = 8,205,107,617.45/101,192.76
  6. Step 6: Final answer
    x = 81,083.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.