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Finding the Fourth Proportional to 101,089.01, 139,457.73 and 58,622.93

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Solution

The fourth proportional to 101,089.01, 139,457.73 and 58,622.93 is: 80,873.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,089.01 : 139,457.73 = 58,622.93 : x
  2. Step 2: Convert to fraction form
    101,089.01/139,457.73 = 58,622.93/x
  3. Step 3: Cross multiply
    101,089.01x = 139,457.73 × 58,622.93
  4. Step 4: Simplify right side
    101,089.01x = 8,175,420,743.75
  5. Step 5: Solve for x
    x = 8,175,420,743.75/101,089.01
  6. Step 6: Final answer
    x = 80,873.49

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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.