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Finding the Fourth Proportional to 73,666.89, 101,633.64 and 48,187.78

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Solution

The fourth proportional to 73,666.89, 101,633.64 and 48,187.78 is: 66,481.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,666.89 : 101,633.64 = 48,187.78 : x
  2. Step 2: Convert to fraction form
    73,666.89/101,633.64 = 48,187.78/x
  3. Step 3: Cross multiply
    73,666.89x = 101,633.64 × 48,187.78
  4. Step 4: Simplify right side
    73,666.89x = 4,897,499,484.92
  5. Step 5: Solve for x
    x = 4,897,499,484.92/73,666.89
  6. Step 6: Final answer
    x = 66,481.69

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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.