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Finding the Fourth Proportional to 106,393,615.80, 159,466,420.80 and 48,891,699.60

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Solution

The fourth proportional to 106,393,615.80, 159,466,420.80 and 48,891,699.60 is: 73,280,565.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,393,615.80 : 159,466,420.80 = 48,891,699.60 : x
  2. Step 2: Convert to fraction form
    106,393,615.80/159,466,420.80 = 48,891,699.60/x
  3. Step 3: Cross multiply
    106,393,615.80x = 159,466,420.80 × 48,891,699.60
  4. Step 4: Simplify right side
    106,393,615.80x = 7,796,584,342,040,793
  5. Step 5: Solve for x
    x = 7,796,584,342,040,793/106,393,615.80
  6. Step 6: Final answer
    x = 73,280,565.60

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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.