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Finding the Fourth Proportional to 73,200.38, 101,016.59 and 39,666.38

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Solution

The fourth proportional to 73,200.38, 101,016.59 and 39,666.38 is: 54,739.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,200.38 : 101,016.59 = 39,666.38 : x
  2. Step 2: Convert to fraction form
    73,200.38/101,016.59 = 39,666.38/x
  3. Step 3: Cross multiply
    73,200.38x = 101,016.59 × 39,666.38
  4. Step 4: Simplify right side
    73,200.38x = 4,006,961,741.83
  5. Step 5: Solve for x
    x = 4,006,961,741.83/73,200.38
  6. Step 6: Final answer
    x = 54,739.63

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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.