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Finding the Fourth Proportional to 231,143.80, 346,715.70 and 195,714.40

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Solution

The fourth proportional to 231,143.80, 346,715.70 and 195,714.40 is: 293,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,143.80 : 346,715.70 = 195,714.40 : x
  2. Step 2: Convert to fraction form
    231,143.80/346,715.70 = 195,714.40/x
  3. Step 3: Cross multiply
    231,143.80x = 346,715.70 × 195,714.40
  4. Step 4: Simplify right side
    231,143.80x = 67,857,255,196.08
  5. Step 5: Solve for x
    x = 67,857,255,196.08/231,143.80
  6. Step 6: Final answer
    x = 293,571.60

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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.