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Finding the Fourth Proportional to 107,736.40, 161,678.40 and 37,615.72

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Solution

The fourth proportional to 107,736.40, 161,678.40 and 37,615.72 is: 56,449.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,736.40 : 161,678.40 = 37,615.72 : x
  2. Step 2: Convert to fraction form
    107,736.40/161,678.40 = 37,615.72/x
  3. Step 3: Cross multiply
    107,736.40x = 161,678.40 × 37,615.72
  4. Step 4: Simplify right side
    107,736.40x = 6,081,649,424.45
  5. Step 5: Solve for x
    x = 6,081,649,424.45/107,736.40
  6. Step 6: Final answer
    x = 56,449.35

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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.