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Finding the Fourth Proportional to 125,957.81, 173,813.87 and 69,369.18

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Solution

The fourth proportional to 125,957.81, 173,813.87 and 69,369.18 is: 95,725.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,957.81 : 173,813.87 = 69,369.18 : x
  2. Step 2: Convert to fraction form
    125,957.81/173,813.87 = 69,369.18/x
  3. Step 3: Cross multiply
    125,957.81x = 173,813.87 × 69,369.18
  4. Step 4: Simplify right side
    125,957.81x = 12,057,325,287.68
  5. Step 5: Solve for x
    x = 12,057,325,287.68/125,957.81
  6. Step 6: Final answer
    x = 95,725.11

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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.