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Finding the Fourth Proportional to 108,820.92, 150,187.56 and 61,076.91

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Solution

The fourth proportional to 108,820.92, 150,187.56 and 61,076.91 is: 84,294.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,820.92 : 150,187.56 = 61,076.91 : x
  2. Step 2: Convert to fraction form
    108,820.92/150,187.56 = 61,076.91/x
  3. Step 3: Cross multiply
    108,820.92x = 150,187.56 × 61,076.91
  4. Step 4: Simplify right side
    108,820.92x = 9,172,992,085.24
  5. Step 5: Solve for x
    x = 9,172,992,085.24/108,820.92
  6. Step 6: Final answer
    x = 84,294.38

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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.