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Finding the Fourth Proportional to 74,235.61, 102,440.73 and 44,023.78

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Solution

The fourth proportional to 74,235.61, 102,440.73 and 44,023.78 is: 60,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,235.61 : 102,440.73 = 44,023.78 : x
  2. Step 2: Convert to fraction form
    74,235.61/102,440.73 = 44,023.78/x
  3. Step 3: Cross multiply
    74,235.61x = 102,440.73 × 44,023.78
  4. Step 4: Simplify right side
    74,235.61x = 4,509,828,160.56
  5. Step 5: Solve for x
    x = 4,509,828,160.56/74,235.61
  6. Step 6: Final answer
    x = 60,750.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.