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Finding the Fourth Proportional to 74,887.88, 103,345.62 and 41,353.88

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Solution

The fourth proportional to 74,887.88, 103,345.62 and 41,353.88 is: 57,068.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,887.88 : 103,345.62 = 41,353.88 : x
  2. Step 2: Convert to fraction form
    74,887.88/103,345.62 = 41,353.88/x
  3. Step 3: Cross multiply
    74,887.88x = 103,345.62 × 41,353.88
  4. Step 4: Simplify right side
    74,887.88x = 4,273,742,368.01
  5. Step 5: Solve for x
    x = 4,273,742,368.01/74,887.88
  6. Step 6: Final answer
    x = 57,068.55

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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.