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Finding the Fourth Proportional to 199,409.06, 299,048.90 and 66,253.57

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Solution

The fourth proportional to 199,409.06, 299,048.90 and 66,253.57 is: 99,358.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,409.06 : 299,048.90 = 66,253.57 : x
  2. Step 2: Convert to fraction form
    199,409.06/299,048.90 = 66,253.57/x
  3. Step 3: Cross multiply
    199,409.06x = 299,048.90 × 66,253.57
  4. Step 4: Simplify right side
    199,409.06x = 19,813,056,150.68
  5. Step 5: Solve for x
    x = 19,813,056,150.68/199,409.06
  6. Step 6: Final answer
    x = 99,358.86

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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.