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Finding the Fourth Proportional to 251,397.54, 346,923 and 136,674.54

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Solution

The fourth proportional to 251,397.54, 346,923 and 136,674.54 is: 188,607.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,397.54 : 346,923 = 136,674.54 : x
  2. Step 2: Convert to fraction form
    251,397.54/346,923 = 136,674.54/x
  3. Step 3: Cross multiply
    251,397.54x = 346,923 × 136,674.54
  4. Step 4: Simplify right side
    251,397.54x = 47,415,541,440.42
  5. Step 5: Solve for x
    x = 47,415,541,440.42/251,397.54
  6. Step 6: Final answer
    x = 188,607.82

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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.