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Finding the Fourth Proportional to 73,747.61, 101,779.50 and 45,084.05

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Solution

The fourth proportional to 73,747.61, 101,779.50 and 45,084.05 is: 62,220.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,747.61 : 101,779.50 = 45,084.05 : x
  2. Step 2: Convert to fraction form
    73,747.61/101,779.50 = 45,084.05/x
  3. Step 3: Cross multiply
    73,747.61x = 101,779.50 × 45,084.05
  4. Step 4: Simplify right side
    73,747.61x = 4,588,632,066.98
  5. Step 5: Solve for x
    x = 4,588,632,066.98/73,747.61
  6. Step 6: Final answer
    x = 62,220.76

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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.