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Finding the Fourth Proportional to 159,243.69, 238,865.72 and 40,916.01

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Solution

The fourth proportional to 159,243.69, 238,865.72 and 40,916.01 is: 61,374.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,243.69 : 238,865.72 = 40,916.01 : x
  2. Step 2: Convert to fraction form
    159,243.69/238,865.72 = 40,916.01/x
  3. Step 3: Cross multiply
    159,243.69x = 238,865.72 × 40,916.01
  4. Step 4: Simplify right side
    159,243.69x = 9,773,431,983.60
  5. Step 5: Solve for x
    x = 9,773,431,983.60/159,243.69
  6. Step 6: Final answer
    x = 61,374.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.