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Finding the Fourth Proportional to 107,472.69, 161,210.58 and 40,916.47

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Solution

The fourth proportional to 107,472.69, 161,210.58 and 40,916.47 is: 61,375.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,472.69 : 161,210.58 = 40,916.47 : x
  2. Step 2: Convert to fraction form
    107,472.69/161,210.58 = 40,916.47/x
  3. Step 3: Cross multiply
    107,472.69x = 161,210.58 × 40,916.47
  4. Step 4: Simplify right side
    107,472.69x = 6,596,166,849.62
  5. Step 5: Solve for x
    x = 6,596,166,849.62/107,472.69
  6. Step 6: Final answer
    x = 61,375.29

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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.