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Finding the Fourth Proportional to 219,910.81, 303,478.23 and 124,437.46

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Solution

The fourth proportional to 219,910.81, 303,478.23 and 124,437.46 is: 171,724.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,910.81 : 303,478.23 = 124,437.46 : x
  2. Step 2: Convert to fraction form
    219,910.81/303,478.23 = 124,437.46/x
  3. Step 3: Cross multiply
    219,910.81x = 303,478.23 × 124,437.46
  4. Step 4: Simplify right side
    219,910.81x = 37,764,060,106.50
  5. Step 5: Solve for x
    x = 37,764,060,106.50/219,910.81
  6. Step 6: Final answer
    x = 171,724.44

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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.