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Finding the Fourth Proportional to 136,162.50, 187,905.87 and 75,737.58

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Solution

The fourth proportional to 136,162.50, 187,905.87 and 75,737.58 is: 104,518.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,162.50 : 187,905.87 = 75,737.58 : x
  2. Step 2: Convert to fraction form
    136,162.50/187,905.87 = 75,737.58/x
  3. Step 3: Cross multiply
    136,162.50x = 187,905.87 × 75,737.58
  4. Step 4: Simplify right side
    136,162.50x = 14,231,535,861.59
  5. Step 5: Solve for x
    x = 14,231,535,861.59/136,162.50
  6. Step 6: Final answer
    x = 104,518.76

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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.