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Finding the Fourth Proportional to 110,543.92, 152,507.29 and 68,028.64

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Solution

The fourth proportional to 110,543.92, 152,507.29 and 68,028.64 is: 93,852.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,543.92 : 152,507.29 = 68,028.64 : x
  2. Step 2: Convert to fraction form
    110,543.92/152,507.29 = 68,028.64/x
  3. Step 3: Cross multiply
    110,543.92x = 152,507.29 × 68,028.64
  4. Step 4: Simplify right side
    110,543.92x = 10,374,863,528.79
  5. Step 5: Solve for x
    x = 10,374,863,528.79/110,543.92
  6. Step 6: Final answer
    x = 93,852.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.