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Finding the Fourth Proportional to 107,472.31, 161,210.01 and 40,916.09

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Solution

The fourth proportional to 107,472.31, 161,210.01 and 40,916.09 is: 61,374.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,472.31 : 161,210.01 = 40,916.09 : x
  2. Step 2: Convert to fraction form
    107,472.31/161,210.01 = 40,916.09/x
  3. Step 3: Cross multiply
    107,472.31x = 161,210.01 × 40,916.09
  4. Step 4: Simplify right side
    107,472.31x = 6,596,083,076.55
  5. Step 5: Solve for x
    x = 6,596,083,076.55/107,472.31
  6. Step 6: Final answer
    x = 61,374.72

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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.