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Finding the Fourth Proportional to 74,892.79, 103,347.25 and 43,063.03

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Solution

The fourth proportional to 74,892.79, 103,347.25 and 43,063.03 is: 59,424.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,892.79 : 103,347.25 = 43,063.03 : x
  2. Step 2: Convert to fraction form
    74,892.79/103,347.25 = 43,063.03/x
  3. Step 3: Cross multiply
    74,892.79x = 103,347.25 × 43,063.03
  4. Step 4: Simplify right side
    74,892.79x = 4,450,445,727.17
  5. Step 5: Solve for x
    x = 4,450,445,727.17/74,892.79
  6. Step 6: Final answer
    x = 59,424.22

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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.