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Finding the Fourth Proportional to 74,802.27, 103,236.27 and 42,971.10

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Solution

The fourth proportional to 74,802.27, 103,236.27 and 42,971.10 is: 59,305.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,802.27 : 103,236.27 = 42,971.10 : x
  2. Step 2: Convert to fraction form
    74,802.27/103,236.27 = 42,971.10/x
  3. Step 3: Cross multiply
    74,802.27x = 103,236.27 × 42,971.10
  4. Step 4: Simplify right side
    74,802.27x = 4,436,176,081.80
  5. Step 5: Solve for x
    x = 4,436,176,081.80/74,802.27
  6. Step 6: Final answer
    x = 59,305.37

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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.