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Finding the Fourth Proportional to 125,943.72, 173,803.50 and 69,355.50

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Solution

The fourth proportional to 125,943.72, 173,803.50 and 69,355.50 is: 95,711.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,943.72 : 173,803.50 = 69,355.50 : x
  2. Step 2: Convert to fraction form
    125,943.72/173,803.50 = 69,355.50/x
  3. Step 3: Cross multiply
    125,943.72x = 173,803.50 × 69,355.50
  4. Step 4: Simplify right side
    125,943.72x = 12,054,228,644.25
  5. Step 5: Solve for x
    x = 12,054,228,644.25/125,943.72
  6. Step 6: Final answer
    x = 95,711.23

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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.