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Finding the Fourth Proportional to 108,832.70, 150,180.89 and 61,076.83

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Solution

The fourth proportional to 108,832.70, 150,180.89 and 61,076.83 is: 84,281.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,832.70 : 150,180.89 = 61,076.83 : x
  2. Step 2: Convert to fraction form
    108,832.70/150,180.89 = 61,076.83/x
  3. Step 3: Cross multiply
    108,832.70x = 150,180.89 × 61,076.83
  4. Step 4: Simplify right side
    108,832.70x = 9,172,572,465.02
  5. Step 5: Solve for x
    x = 9,172,572,465.02/108,832.70
  6. Step 6: Final answer
    x = 84,281.40

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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.