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Finding the Fourth Proportional to 107,897.32, 161,845.98 and 45,568.36

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Solution

The fourth proportional to 107,897.32, 161,845.98 and 45,568.36 is: 68,352.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,897.32 : 161,845.98 = 45,568.36 : x
  2. Step 2: Convert to fraction form
    107,897.32/161,845.98 = 45,568.36/x
  3. Step 3: Cross multiply
    107,897.32x = 161,845.98 × 45,568.36
  4. Step 4: Simplify right side
    107,897.32x = 7,375,055,881.19
  5. Step 5: Solve for x
    x = 7,375,055,881.19/107,897.32
  6. Step 6: Final answer
    x = 68,352.54

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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.