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Finding the Fourth Proportional to 101,051.62, 139,449.81 and 58,617.34

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Solution

The fourth proportional to 101,051.62, 139,449.81 and 58,617.34 is: 80,891.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,051.62 : 139,449.81 = 58,617.34 : x
  2. Step 2: Convert to fraction form
    101,051.62/139,449.81 = 58,617.34/x
  3. Step 3: Cross multiply
    101,051.62x = 139,449.81 × 58,617.34
  4. Step 4: Simplify right side
    101,051.62x = 8,174,176,925.71
  5. Step 5: Solve for x
    x = 8,174,176,925.71/101,051.62
  6. Step 6: Final answer
    x = 80,891.10

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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.