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Finding the Fourth Proportional to 340,226.72, 510,413.88 and 103,563.24

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Solution

The fourth proportional to 340,226.72, 510,413.88 and 103,563.24 is: 155,367.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,226.72 : 510,413.88 = 103,563.24 : x
  2. Step 2: Convert to fraction form
    340,226.72/510,413.88 = 103,563.24/x
  3. Step 3: Cross multiply
    340,226.72x = 510,413.88 × 103,563.24
  4. Step 4: Simplify right side
    340,226.72x = 52,860,115,153.77
  5. Step 5: Solve for x
    x = 52,860,115,153.77/340,226.72
  6. Step 6: Final answer
    x = 155,367.32

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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.