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Finding the Fourth Proportional to 73,189.77, 101,001.90 and 39,655.77

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Solution

The fourth proportional to 73,189.77, 101,001.90 and 39,655.77 is: 54,724.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,189.77 : 101,001.90 = 39,655.77 : x
  2. Step 2: Convert to fraction form
    73,189.77/101,001.90 = 39,655.77/x
  3. Step 3: Cross multiply
    73,189.77x = 101,001.90 × 39,655.77
  4. Step 4: Simplify right side
    73,189.77x = 4,005,308,115.96
  5. Step 5: Solve for x
    x = 4,005,308,115.96/73,189.77
  6. Step 6: Final answer
    x = 54,724.97

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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.