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Finding the Fourth Proportional to 195,761.80, 293,642.70 and 194,379.40

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Solution

The fourth proportional to 195,761.80, 293,642.70 and 194,379.40 is: 291,569.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,761.80 : 293,642.70 = 194,379.40 : x
  2. Step 2: Convert to fraction form
    195,761.80/293,642.70 = 194,379.40/x
  3. Step 3: Cross multiply
    195,761.80x = 293,642.70 × 194,379.40
  4. Step 4: Simplify right side
    195,761.80x = 57,078,091,840.38
  5. Step 5: Solve for x
    x = 57,078,091,840.38/195,761.80
  6. Step 6: Final answer
    x = 291,569.10

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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.