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Finding the Fourth Proportional to 77,607.43, 107,013.50 and 52,413.19

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Solution

The fourth proportional to 77,607.43, 107,013.50 and 52,413.19 is: 72,272.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,607.43 : 107,013.50 = 52,413.19 : x
  2. Step 2: Convert to fraction form
    77,607.43/107,013.50 = 52,413.19/x
  3. Step 3: Cross multiply
    77,607.43x = 107,013.50 × 52,413.19
  4. Step 4: Simplify right side
    77,607.43x = 5,608,918,646.00
  5. Step 5: Solve for x
    x = 5,608,918,646.00/77,607.43
  6. Step 6: Final answer
    x = 72,272.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.