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Finding the Fourth Proportional to 125,344.50, 172,975.41 and 68,756.01

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Solution

The fourth proportional to 125,344.50, 172,975.41 and 68,756.01 is: 94,883.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,344.50 : 172,975.41 = 68,756.01 : x
  2. Step 2: Convert to fraction form
    125,344.50/172,975.41 = 68,756.01/x
  3. Step 3: Cross multiply
    125,344.50x = 172,975.41 × 68,756.01
  4. Step 4: Simplify right side
    125,344.50x = 11,893,099,019.71
  5. Step 5: Solve for x
    x = 11,893,099,019.71/125,344.50
  6. Step 6: Final answer
    x = 94,883.29

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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.