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Finding the Fourth Proportional to 81,840.58, 112,938.88 and 46,030.57

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Solution

The fourth proportional to 81,840.58, 112,938.88 and 46,030.57 is: 63,521.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,840.58 : 112,938.88 = 46,030.57 : x
  2. Step 2: Convert to fraction form
    81,840.58/112,938.88 = 46,030.57/x
  3. Step 3: Cross multiply
    81,840.58x = 112,938.88 × 46,030.57
  4. Step 4: Simplify right side
    81,840.58x = 5,198,640,791.41
  5. Step 5: Solve for x
    x = 5,198,640,791.41/81,840.58
  6. Step 6: Final answer
    x = 63,521.56

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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.