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Finding the Fourth Proportional to 7,163,852.80, 10,745,779.20 and 6,743,603.20

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Solution

The fourth proportional to 7,163,852.80, 10,745,779.20 and 6,743,603.20 is: 10,115,404.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163,852.80 : 10,745,779.20 = 6,743,603.20 : x
  2. Step 2: Convert to fraction form
    7,163,852.80/10,745,779.20 = 6,743,603.20/x
  3. Step 3: Cross multiply
    7,163,852.80x = 10,745,779.20 × 6,743,603.20
  4. Step 4: Simplify right side
    7,163,852.80x = 72,465,270,999,613.44
  5. Step 5: Solve for x
    x = 72,465,270,999,613.44/7,163,852.80
  6. Step 6: Final answer
    x = 10,115,404.80

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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.