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Finding the Fourth Proportional to 74,951.55, 103,434.42 and 44,731.01

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Solution

The fourth proportional to 74,951.55, 103,434.42 and 44,731.01 is: 61,729.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,951.55 : 103,434.42 = 44,731.01 : x
  2. Step 2: Convert to fraction form
    74,951.55/103,434.42 = 44,731.01/x
  3. Step 3: Cross multiply
    74,951.55x = 103,434.42 × 44,731.01
  4. Step 4: Simplify right side
    74,951.55x = 4,626,726,075.36
  5. Step 5: Solve for x
    x = 4,626,726,075.36/74,951.55
  6. Step 6: Final answer
    x = 61,729.56

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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.