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Finding the Fourth Proportional to 92,866.80, 139,069.80 and 74,434.80

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Solution

The fourth proportional to 92,866.80, 139,069.80 and 74,434.80 is: 111,467.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,866.80 : 139,069.80 = 74,434.80 : x
  2. Step 2: Convert to fraction form
    92,866.80/139,069.80 = 74,434.80/x
  3. Step 3: Cross multiply
    92,866.80x = 139,069.80 × 74,434.80
  4. Step 4: Simplify right side
    92,866.80x = 10,351,632,749.04
  5. Step 5: Solve for x
    x = 10,351,632,749.04/92,866.80
  6. Step 6: Final answer
    x = 111,467.53

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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.