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Finding the Fourth Proportional to 194,429.80, 291,644.70 and 114,713.65

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Solution

The fourth proportional to 194,429.80, 291,644.70 and 114,713.65 is: 172,070.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,429.80 : 291,644.70 = 114,713.65 : x
  2. Step 2: Convert to fraction form
    194,429.80/291,644.70 = 114,713.65/x
  3. Step 3: Cross multiply
    194,429.80x = 291,644.70 × 114,713.65
  4. Step 4: Simplify right side
    194,429.80x = 33,455,628,040.16
  5. Step 5: Solve for x
    x = 33,455,628,040.16/194,429.80
  6. Step 6: Final answer
    x = 172,070.48

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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.