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Finding the Fourth Proportional to 192,039.60, 288,059.40 and 51,798.20

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Solution

The fourth proportional to 192,039.60, 288,059.40 and 51,798.20 is: 77,697.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,039.60 : 288,059.40 = 51,798.20 : x
  2. Step 2: Convert to fraction form
    192,039.60/288,059.40 = 51,798.20/x
  3. Step 3: Cross multiply
    192,039.60x = 288,059.40 × 51,798.20
  4. Step 4: Simplify right side
    192,039.60x = 14,920,958,413.08
  5. Step 5: Solve for x
    x = 14,920,958,413.08/192,039.60
  6. Step 6: Final answer
    x = 77,697.30

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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.