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Finding the Fourth Proportional to 101,632.35, 140,250.69 and 61,347.81

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Solution

The fourth proportional to 101,632.35, 140,250.69 and 61,347.81 is: 84,658.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,632.35 : 140,250.69 = 61,347.81 : x
  2. Step 2: Convert to fraction form
    101,632.35/140,250.69 = 61,347.81/x
  3. Step 3: Cross multiply
    101,632.35x = 140,250.69 × 61,347.81
  4. Step 4: Simplify right side
    101,632.35x = 8,604,072,682.49
  5. Step 5: Solve for x
    x = 8,604,072,682.49/101,632.35
  6. Step 6: Final answer
    x = 84,658.80

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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.