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Finding the Fourth Proportional to 108,614.77, 162,921.82 and 27,561.63

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Solution

The fourth proportional to 108,614.77, 162,921.82 and 27,561.63 is: 41,342.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,614.77 : 162,921.82 = 27,561.63 : x
  2. Step 2: Convert to fraction form
    108,614.77/162,921.82 = 27,561.63/x
  3. Step 3: Cross multiply
    108,614.77x = 162,921.82 × 27,561.63
  4. Step 4: Simplify right side
    108,614.77x = 4,490,390,783.96
  5. Step 5: Solve for x
    x = 4,490,390,783.96/108,614.77
  6. Step 6: Final answer
    x = 41,342.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.