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Finding the Fourth Proportional to 74,963.71, 112,445.58 and 30,611.35

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Solution

The fourth proportional to 74,963.71, 112,445.58 and 30,611.35 is: 45,917.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,963.71 : 112,445.58 = 30,611.35 : x
  2. Step 2: Convert to fraction form
    74,963.71/112,445.58 = 30,611.35/x
  3. Step 3: Cross multiply
    74,963.71x = 112,445.58 × 30,611.35
  4. Step 4: Simplify right side
    74,963.71x = 3,442,111,005.33
  5. Step 5: Solve for x
    x = 3,442,111,005.33/74,963.71
  6. Step 6: Final answer
    x = 45,917.03

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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.