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Finding the Fourth Proportional to 74,866.80, 112,202.80 and 30,441.76

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Solution

The fourth proportional to 74,866.80, 112,202.80 and 30,441.76 is: 45,623.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,866.80 : 112,202.80 = 30,441.76 : x
  2. Step 2: Convert to fraction form
    74,866.80/112,202.80 = 30,441.76/x
  3. Step 3: Cross multiply
    74,866.80x = 112,202.80 × 30,441.76
  4. Step 4: Simplify right side
    74,866.80x = 3,415,650,708.93
  5. Step 5: Solve for x
    x = 3,415,650,708.93/74,866.80
  6. Step 6: Final answer
    x = 45,623.04

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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.