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Finding the Fourth Proportional to 251,586.66, 347,191.84 and 136,867.81

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Solution

The fourth proportional to 251,586.66, 347,191.84 and 136,867.81 is: 188,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,586.66 : 347,191.84 = 136,867.81 : x
  2. Step 2: Convert to fraction form
    251,586.66/347,191.84 = 136,867.81/x
  3. Step 3: Cross multiply
    251,586.66x = 347,191.84 × 136,867.81
  4. Step 4: Simplify right side
    251,586.66x = 47,519,385,054.71
  5. Step 5: Solve for x
    x = 47,519,385,054.71/251,586.66
  6. Step 6: Final answer
    x = 188,878.80

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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.