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Finding the Fourth Proportional to 200,697.10, 301,045.65 and 133,920.70

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Solution

The fourth proportional to 200,697.10, 301,045.65 and 133,920.70 is: 200,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,697.10 : 301,045.65 = 133,920.70 : x
  2. Step 2: Convert to fraction form
    200,697.10/301,045.65 = 133,920.70/x
  3. Step 3: Cross multiply
    200,697.10x = 301,045.65 × 133,920.70
  4. Step 4: Simplify right side
    200,697.10x = 40,316,244,179.96
  5. Step 5: Solve for x
    x = 40,316,244,179.96/200,697.10
  6. Step 6: Final answer
    x = 200,881.05

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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.