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Finding the Fourth Proportional to 101,235.13, 139,704.49 and 58,796.39

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Solution

The fourth proportional to 101,235.13, 139,704.49 and 58,796.39 is: 81,139.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,235.13 : 139,704.49 = 58,796.39 : x
  2. Step 2: Convert to fraction form
    101,235.13/139,704.49 = 58,796.39/x
  3. Step 3: Cross multiply
    101,235.13x = 139,704.49 × 58,796.39
  4. Step 4: Simplify right side
    101,235.13x = 8,214,119,678.79
  5. Step 5: Solve for x
    x = 8,214,119,678.79/101,235.13
  6. Step 6: Final answer
    x = 81,139.02

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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.