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Finding the Fourth Proportional to 139,706.70, 209,557.99 and 34,525.66

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Solution

The fourth proportional to 139,706.70, 209,557.99 and 34,525.66 is: 51,787.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,706.70 : 209,557.99 = 34,525.66 : x
  2. Step 2: Convert to fraction form
    139,706.70/209,557.99 = 34,525.66/x
  3. Step 3: Cross multiply
    139,706.70x = 209,557.99 × 34,525.66
  4. Step 4: Simplify right side
    139,706.70x = 7,235,127,913.02
  5. Step 5: Solve for x
    x = 7,235,127,913.02/139,706.70
  6. Step 6: Final answer
    x = 51,787.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.