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Finding the Fourth Proportional to 200,671.05, 301,012.92 and 74,342.91

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Solution

The fourth proportional to 200,671.05, 301,012.92 and 74,342.91 is: 111,516.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,671.05 : 301,012.92 = 74,342.91 : x
  2. Step 2: Convert to fraction form
    200,671.05/301,012.92 = 74,342.91/x
  3. Step 3: Cross multiply
    200,671.05x = 301,012.92 × 74,342.91
  4. Step 4: Simplify right side
    200,671.05x = 22,378,176,420.40
  5. Step 5: Solve for x
    x = 22,378,176,420.40/200,671.05
  6. Step 6: Final answer
    x = 111,516.72

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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.