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Finding the Fourth Proportional to 108,893.42, 150,273.85 and 61,151.21

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Solution

The fourth proportional to 108,893.42, 150,273.85 and 61,151.21 is: 84,389.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,893.42 : 150,273.85 = 61,151.21 : x
  2. Step 2: Convert to fraction form
    108,893.42/150,273.85 = 61,151.21/x
  3. Step 3: Cross multiply
    108,893.42x = 150,273.85 × 61,151.21
  4. Step 4: Simplify right side
    108,893.42x = 9,189,427,758.86
  5. Step 5: Solve for x
    x = 9,189,427,758.86/108,893.42
  6. Step 6: Final answer
    x = 84,389.19

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1.5x scale

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.