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Finding the Fourth Proportional to 112,039.40, 168,123.90 and 41,925.80

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Solution

The fourth proportional to 112,039.40, 168,123.90 and 41,925.80 is: 62,912.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,039.40 : 168,123.90 = 41,925.80 : x
  2. Step 2: Convert to fraction form
    112,039.40/168,123.90 = 41,925.80/x
  3. Step 3: Cross multiply
    112,039.40x = 168,123.90 × 41,925.80
  4. Step 4: Simplify right side
    112,039.40x = 7,048,729,006.62
  5. Step 5: Solve for x
    x = 7,048,729,006.62/112,039.40
  6. Step 6: Final answer
    x = 62,912.95

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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.