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Finding the Fourth Proportional to 139,706.44, 209,557.62 and 34,525.42

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Solution

The fourth proportional to 139,706.44, 209,557.62 and 34,525.42 is: 51,787.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,706.44 : 209,557.62 = 34,525.42 : x
  2. Step 2: Convert to fraction form
    139,706.44/209,557.62 = 34,525.42/x
  3. Step 3: Cross multiply
    139,706.44x = 209,557.62 × 34,525.42
  4. Step 4: Simplify right side
    139,706.44x = 7,235,064,320.81
  5. Step 5: Solve for x
    x = 7,235,064,320.81/139,706.44
  6. Step 6: Final answer
    x = 51,787.62

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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.