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Finding the Fourth Proportional to 107,962.40, 161,866.80 and 41,376.80

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Solution

The fourth proportional to 107,962.40, 161,866.80 and 41,376.80 is: 62,035.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,962.40 : 161,866.80 = 41,376.80 : x
  2. Step 2: Convert to fraction form
    107,962.40/161,866.80 = 41,376.80/x
  3. Step 3: Cross multiply
    107,962.40x = 161,866.80 × 41,376.80
  4. Step 4: Simplify right side
    107,962.40x = 6,697,530,210.24
  5. Step 5: Solve for x
    x = 6,697,530,210.24/107,962.40
  6. Step 6: Final answer
    x = 62,035.77

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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.