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Finding the Fourth Proportional to 133,363.40, 200,045.10 and 127,239.80

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Solution

The fourth proportional to 133,363.40, 200,045.10 and 127,239.80 is: 190,859.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,363.40 : 200,045.10 = 127,239.80 : x
  2. Step 2: Convert to fraction form
    133,363.40/200,045.10 = 127,239.80/x
  3. Step 3: Cross multiply
    133,363.40x = 200,045.10 × 127,239.80
  4. Step 4: Simplify right side
    133,363.40x = 25,453,698,514.98
  5. Step 5: Solve for x
    x = 25,453,698,514.98/133,363.40
  6. Step 6: Final answer
    x = 190,859.70

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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.