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Finding the Fourth Proportional to 101,058.57, 139,467.20 and 58,051.51

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Solution

The fourth proportional to 101,058.57, 139,467.20 and 58,051.51 is: 80,114.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,058.57 : 139,467.20 = 58,051.51 : x
  2. Step 2: Convert to fraction form
    101,058.57/139,467.20 = 58,051.51/x
  3. Step 3: Cross multiply
    101,058.57x = 139,467.20 × 58,051.51
  4. Step 4: Simplify right side
    101,058.57x = 8,096,280,916.55
  5. Step 5: Solve for x
    x = 8,096,280,916.55/101,058.57
  6. Step 6: Final answer
    x = 80,114.74

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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.