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Finding the Fourth Proportional to 73,779,105.80, 110,668,658.70 and 65,488,626.20

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Solution

The fourth proportional to 73,779,105.80, 110,668,658.70 and 65,488,626.20 is: 98,232,939.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,779,105.80 : 110,668,658.70 = 65,488,626.20 : x
  2. Step 2: Convert to fraction form
    73,779,105.80/110,668,658.70 = 65,488,626.20/x
  3. Step 3: Cross multiply
    73,779,105.80x = 110,668,658.70 × 65,488,626.20
  4. Step 4: Simplify right side
    73,779,105.80x = 7,247,538,421,659,678
  5. Step 5: Solve for x
    x = 7,247,538,421,659,678/73,779,105.80
  6. Step 6: Final answer
    x = 98,232,939.30

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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.