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Finding the Fourth Proportional to 101,180.92, 139,647.94 and 60,347.66

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Solution

The fourth proportional to 101,180.92, 139,647.94 and 60,347.66 is: 83,290.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,180.92 : 139,647.94 = 60,347.66 : x
  2. Step 2: Convert to fraction form
    101,180.92/139,647.94 = 60,347.66/x
  3. Step 3: Cross multiply
    101,180.92x = 139,647.94 × 60,347.66
  4. Step 4: Simplify right side
    101,180.92x = 8,427,426,685.35
  5. Step 5: Solve for x
    x = 8,427,426,685.35/101,180.92
  6. Step 6: Final answer
    x = 83,290.67

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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.