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Finding the Fourth Proportional to 178,343.51, 245,898.83 and 154,100.66

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Solution

The fourth proportional to 178,343.51, 245,898.83 and 154,100.66 is: 212,472.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,343.51 : 245,898.83 = 154,100.66 : x
  2. Step 2: Convert to fraction form
    178,343.51/245,898.83 = 154,100.66/x
  3. Step 3: Cross multiply
    178,343.51x = 245,898.83 × 154,100.66
  4. Step 4: Simplify right side
    178,343.51x = 37,893,171,996.23
  5. Step 5: Solve for x
    x = 37,893,171,996.23/178,343.51
  6. Step 6: Final answer
    x = 212,472.95

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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.