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Finding the Fourth Proportional to 74,620.44, 102,963.96 and 46,364.40

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Solution

The fourth proportional to 74,620.44, 102,963.96 and 46,364.40 is: 63,975.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,620.44 : 102,963.96 = 46,364.40 : x
  2. Step 2: Convert to fraction form
    74,620.44/102,963.96 = 46,364.40/x
  3. Step 3: Cross multiply
    74,620.44x = 102,963.96 × 46,364.40
  4. Step 4: Simplify right side
    74,620.44x = 4,773,862,227.02
  5. Step 5: Solve for x
    x = 4,773,862,227.02/74,620.44
  6. Step 6: Final answer
    x = 63,975.26

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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.