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Finding the Fourth Proportional to 208,990.70, 288,495.41 and 141,099.59

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Solution

The fourth proportional to 208,990.70, 288,495.41 and 141,099.59 is: 194,777.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,990.70 : 288,495.41 = 141,099.59 : x
  2. Step 2: Convert to fraction form
    208,990.70/288,495.41 = 141,099.59/x
  3. Step 3: Cross multiply
    208,990.70x = 288,495.41 × 141,099.59
  4. Step 4: Simplify right side
    208,990.70x = 40,706,583,362.38
  5. Step 5: Solve for x
    x = 40,706,583,362.38/208,990.70
  6. Step 6: Final answer
    x = 194,777.01

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1.5x scale

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.