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Finding the Fourth Proportional to 251,374.64, 346,899.26 and 136,653.50

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Solution

The fourth proportional to 251,374.64, 346,899.26 and 136,653.50 is: 188,583.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,374.64 : 346,899.26 = 136,653.50 : x
  2. Step 2: Convert to fraction form
    251,374.64/346,899.26 = 136,653.50/x
  3. Step 3: Cross multiply
    251,374.64x = 346,899.26 × 136,653.50
  4. Step 4: Simplify right side
    251,374.64x = 47,404,995,608.65
  5. Step 5: Solve for x
    x = 47,404,995,608.65/251,374.64
  6. Step 6: Final answer
    x = 188,583.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.