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Finding the Fourth Proportional to 194,758.80, 292,108.90 and 61,621.76

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Solution

The fourth proportional to 194,758.80, 292,108.90 and 61,621.76 is: 92,423.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,758.80 : 292,108.90 = 61,621.76 : x
  2. Step 2: Convert to fraction form
    194,758.80/292,108.90 = 61,621.76/x
  3. Step 3: Cross multiply
    194,758.80x = 292,108.90 × 61,621.76
  4. Step 4: Simplify right side
    194,758.80x = 18,000,264,529.66
  5. Step 5: Solve for x
    x = 18,000,264,529.66/194,758.80
  6. Step 6: Final answer
    x = 92,423.37

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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.