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Finding the Fourth Proportional to 141,838.70, 212,758.05 and 127,064.30

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Solution

The fourth proportional to 141,838.70, 212,758.05 and 127,064.30 is: 190,596.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,838.70 : 212,758.05 = 127,064.30 : x
  2. Step 2: Convert to fraction form
    141,838.70/212,758.05 = 127,064.30/x
  3. Step 3: Cross multiply
    141,838.70x = 212,758.05 × 127,064.30
  4. Step 4: Simplify right side
    141,838.70x = 27,033,952,692.62
  5. Step 5: Solve for x
    x = 27,033,952,692.62/141,838.70
  6. Step 6: Final answer
    x = 190,596.45

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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.