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Finding the Fourth Proportional to 230,721.80, 346,082.70 and 191,841.80

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Solution

The fourth proportional to 230,721.80, 346,082.70 and 191,841.80 is: 287,762.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,721.80 : 346,082.70 = 191,841.80 : x
  2. Step 2: Convert to fraction form
    230,721.80/346,082.70 = 191,841.80/x
  3. Step 3: Cross multiply
    230,721.80x = 346,082.70 × 191,841.80
  4. Step 4: Simplify right side
    230,721.80x = 66,393,128,116.86
  5. Step 5: Solve for x
    x = 66,393,128,116.86/230,721.80
  6. Step 6: Final answer
    x = 287,762.70

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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.