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Finding the Fourth Proportional to 75,124.66, 103,664.85 and 44,903.98

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Solution

The fourth proportional to 75,124.66, 103,664.85 and 44,903.98 is: 61,963.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,124.66 : 103,664.85 = 44,903.98 : x
  2. Step 2: Convert to fraction form
    75,124.66/103,664.85 = 44,903.98/x
  3. Step 3: Cross multiply
    75,124.66x = 103,664.85 × 44,903.98
  4. Step 4: Simplify right side
    75,124.66x = 4,654,964,351.10
  5. Step 5: Solve for x
    x = 4,654,964,351.10/75,124.66
  6. Step 6: Final answer
    x = 61,963.20

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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.