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Finding the Fourth Proportional to 74,708.94, 103,076.34 and 44,479.14

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Solution

The fourth proportional to 74,708.94, 103,076.34 and 44,479.14 is: 61,368.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,708.94 : 103,076.34 = 44,479.14 : x
  2. Step 2: Convert to fraction form
    74,708.94/103,076.34 = 44,479.14/x
  3. Step 3: Cross multiply
    74,708.94x = 103,076.34 × 44,479.14
  4. Step 4: Simplify right side
    74,708.94x = 4,584,746,957.55
  5. Step 5: Solve for x
    x = 4,584,746,957.55/74,708.94
  6. Step 6: Final answer
    x = 61,368.12

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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.