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Finding the Fourth Proportional to 73,779.85, 110,697.72 and 44,218.90

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Solution

The fourth proportional to 73,779.85, 110,697.72 and 44,218.90 is: 66,345.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,779.85 : 110,697.72 = 44,218.90 : x
  2. Step 2: Convert to fraction form
    73,779.85/110,697.72 = 44,218.90/x
  3. Step 3: Cross multiply
    73,779.85x = 110,697.72 × 44,218.90
  4. Step 4: Simplify right side
    73,779.85x = 4,894,931,410.91
  5. Step 5: Solve for x
    x = 4,894,931,410.91/73,779.85
  6. Step 6: Final answer
    x = 66,345.10

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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.