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Finding the Fourth Proportional to 137,188.86, 205,516.99 and 101,099.83

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Solution

The fourth proportional to 137,188.86, 205,516.99 and 101,099.83 is: 151,453.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,188.86 : 205,516.99 = 101,099.83 : x
  2. Step 2: Convert to fraction form
    137,188.86/205,516.99 = 101,099.83/x
  3. Step 3: Cross multiply
    137,188.86x = 205,516.99 × 101,099.83
  4. Step 4: Simplify right side
    137,188.86x = 20,777,732,751.11
  5. Step 5: Solve for x
    x = 20,777,732,751.11/137,188.86
  6. Step 6: Final answer
    x = 151,453.50

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1.5x scale

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.