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Finding the Fourth Proportional to 250,899.71, 346,242.65 and 136,178.52

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Solution

The fourth proportional to 250,899.71, 346,242.65 and 136,178.52 is: 187,926.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,899.71 : 346,242.65 = 136,178.52 : x
  2. Step 2: Convert to fraction form
    250,899.71/346,242.65 = 136,178.52/x
  3. Step 3: Cross multiply
    250,899.71x = 346,242.65 × 136,178.52
  4. Step 4: Simplify right side
    250,899.71x = 47,150,810,956.99
  5. Step 5: Solve for x
    x = 47,150,810,956.99/250,899.71
  6. Step 6: Final answer
    x = 187,926.93

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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.