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Finding the Fourth Proportional to 343,413.36, 515,117.52 and 106,755.60

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Solution

The fourth proportional to 343,413.36, 515,117.52 and 106,755.60 is: 160,132.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,413.36 : 515,117.52 = 106,755.60 : x
  2. Step 2: Convert to fraction form
    343,413.36/515,117.52 = 106,755.60/x
  3. Step 3: Cross multiply
    343,413.36x = 515,117.52 × 106,755.60
  4. Step 4: Simplify right side
    343,413.36x = 54,991,679,918.11
  5. Step 5: Solve for x
    x = 54,991,679,918.11/343,413.36
  6. Step 6: Final answer
    x = 160,132.62

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1.5x scale

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.