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Finding the Fourth Proportional to 74,430.40, 111,643.80 and 44,825.80

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Solution

The fourth proportional to 74,430.40, 111,643.80 and 44,825.80 is: 67,237.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,430.40 : 111,643.80 = 44,825.80 : x
  2. Step 2: Convert to fraction form
    74,430.40/111,643.80 = 44,825.80/x
  3. Step 3: Cross multiply
    74,430.40x = 111,643.80 × 44,825.80
  4. Step 4: Simplify right side
    74,430.40x = 5,004,522,650.04
  5. Step 5: Solve for x
    x = 5,004,522,650.04/74,430.40
  6. Step 6: Final answer
    x = 67,237.62

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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.