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Finding the Fourth Proportional to 74,675.70, 112,060.44 and 30,302.64

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Solution

The fourth proportional to 74,675.70, 112,060.44 and 30,302.64 is: 45,472.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,675.70 : 112,060.44 = 30,302.64 : x
  2. Step 2: Convert to fraction form
    74,675.70/112,060.44 = 30,302.64/x
  3. Step 3: Cross multiply
    74,675.70x = 112,060.44 × 30,302.64
  4. Step 4: Simplify right side
    74,675.70x = 3,395,727,171.56
  5. Step 5: Solve for x
    x = 3,395,727,171.56/74,675.70
  6. Step 6: Final answer
    x = 45,472.99

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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.