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Finding the Fourth Proportional to 101,269.90, 139,760.94 and 58,825.90

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Solution

The fourth proportional to 101,269.90, 139,760.94 and 58,825.90 is: 81,184.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,269.90 : 139,760.94 = 58,825.90 : x
  2. Step 2: Convert to fraction form
    101,269.90/139,760.94 = 58,825.90/x
  3. Step 3: Cross multiply
    101,269.90x = 139,760.94 × 58,825.90
  4. Step 4: Simplify right side
    101,269.90x = 8,221,563,080.35
  5. Step 5: Solve for x
    x = 8,221,563,080.35/101,269.90
  6. Step 6: Final answer
    x = 81,184.67

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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.