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Finding the Fourth Proportional to 194,841.40, 292,189.20 and 68,432.80

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Solution

The fourth proportional to 194,841.40, 292,189.20 and 68,432.80 is: 102,623.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,841.40 : 292,189.20 = 68,432.80 : x
  2. Step 2: Convert to fraction form
    194,841.40/292,189.20 = 68,432.80/x
  3. Step 3: Cross multiply
    194,841.40x = 292,189.20 × 68,432.80
  4. Step 4: Simplify right side
    194,841.40x = 19,995,325,085.76
  5. Step 5: Solve for x
    x = 19,995,325,085.76/194,841.40
  6. Step 6: Final answer
    x = 102,623.60

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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.