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Finding the Fourth Proportional to 72,603,000.45, 108,904,500.68 and 72,603,000.45

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Solution

The fourth proportional to 72,603,000.45, 108,904,500.68 and 72,603,000.45 is: 108,904,500.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,603,000.45 : 108,904,500.68 = 72,603,000.45 : x
  2. Step 2: Convert to fraction form
    72,603,000.45/108,904,500.68 = 72,603,000.45/x
  3. Step 3: Cross multiply
    72,603,000.45x = 108,904,500.68 × 72,603,000.45
  4. Step 4: Simplify right side
    72,603,000.45x = 7,906,793,511,514,050
  5. Step 5: Solve for x
    x = 7,906,793,511,514,050/72,603,000.45
  6. Step 6: Final answer
    x = 108,904,500.68

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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.