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Finding the Fourth Proportional to 108,977.60, 150,389.22 and 61,230.92

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Solution

The fourth proportional to 108,977.60, 150,389.22 and 61,230.92 is: 84,498.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,977.60 : 150,389.22 = 61,230.92 : x
  2. Step 2: Convert to fraction form
    108,977.60/150,389.22 = 61,230.92/x
  3. Step 3: Cross multiply
    108,977.60x = 150,389.22 × 61,230.92
  4. Step 4: Simplify right side
    108,977.60x = 9,208,470,298.68
  5. Step 5: Solve for x
    x = 9,208,470,298.68/108,977.60
  6. Step 6: Final answer
    x = 84,498.74

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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.