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Finding the Fourth Proportional to 74,256.72, 111,357.54 and 29,868.30

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Solution

The fourth proportional to 74,256.72, 111,357.54 and 29,868.30 is: 44,791.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,256.72 : 111,357.54 = 29,868.30 : x
  2. Step 2: Convert to fraction form
    74,256.72/111,357.54 = 29,868.30/x
  3. Step 3: Cross multiply
    74,256.72x = 111,357.54 × 29,868.30
  4. Step 4: Simplify right side
    74,256.72x = 3,326,060,411.98
  5. Step 5: Solve for x
    x = 3,326,060,411.98/74,256.72
  6. Step 6: Final answer
    x = 44,791.37

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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.