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Finding the Fourth Proportional to 108,893.10, 150,262.02 and 61,135.50

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Solution

The fourth proportional to 108,893.10, 150,262.02 and 61,135.50 is: 84,361.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,893.10 : 150,262.02 = 61,135.50 : x
  2. Step 2: Convert to fraction form
    108,893.10/150,262.02 = 61,135.50/x
  3. Step 3: Cross multiply
    108,893.10x = 150,262.02 × 61,135.50
  4. Step 4: Simplify right side
    108,893.10x = 9,186,343,723.71
  5. Step 5: Solve for x
    x = 9,186,343,723.71/108,893.10
  6. Step 6: Final answer
    x = 84,361.12

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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.