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Finding the Fourth Proportional to 202,099.80, 278,951.49 and 119,386.23

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Solution

The fourth proportional to 202,099.80, 278,951.49 and 119,386.23 is: 164,784.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,099.80 : 278,951.49 = 119,386.23 : x
  2. Step 2: Convert to fraction form
    202,099.80/278,951.49 = 119,386.23/x
  3. Step 3: Cross multiply
    202,099.80x = 278,951.49 × 119,386.23
  4. Step 4: Simplify right side
    202,099.80x = 33,302,966,743.98
  5. Step 5: Solve for x
    x = 33,302,966,743.98/202,099.80
  6. Step 6: Final answer
    x = 164,784.76

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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.