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Finding the Fourth Proportional to 74,866.60, 112,202.78 and 30,441.64

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Solution

The fourth proportional to 74,866.60, 112,202.78 and 30,441.64 is: 45,622.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,866.60 : 112,202.78 = 30,441.64 : x
  2. Step 2: Convert to fraction form
    74,866.60/112,202.78 = 30,441.64/x
  3. Step 3: Cross multiply
    74,866.60x = 112,202.78 × 30,441.64
  4. Step 4: Simplify right side
    74,866.60x = 3,415,636,635.76
  5. Step 5: Solve for x
    x = 3,415,636,635.76/74,866.60
  6. Step 6: Final answer
    x = 45,622.97

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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.