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Finding the Fourth Proportional to 74,851.50, 103,295.16 and 41,317.50

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Solution

The fourth proportional to 74,851.50, 103,295.16 and 41,317.50 is: 57,018.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,851.50 : 103,295.16 = 41,317.50 : x
  2. Step 2: Convert to fraction form
    74,851.50/103,295.16 = 41,317.50/x
  3. Step 3: Cross multiply
    74,851.50x = 103,295.16 × 41,317.50
  4. Step 4: Simplify right side
    74,851.50x = 4,267,897,773.30
  5. Step 5: Solve for x
    x = 4,267,897,773.30/74,851.50
  6. Step 6: Final answer
    x = 57,018.20

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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.