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Finding the Fourth Proportional to 502,768.35, 754,160.67 and 123,690.06

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Solution

The fourth proportional to 502,768.35, 754,160.67 and 123,690.06 is: 185,537.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,768.35 : 754,160.67 = 123,690.06 : x
  2. Step 2: Convert to fraction form
    502,768.35/754,160.67 = 123,690.06/x
  3. Step 3: Cross multiply
    502,768.35x = 754,160.67 × 123,690.06
  4. Step 4: Simplify right side
    502,768.35x = 93,282,178,521.94
  5. Step 5: Solve for x
    x = 93,282,178,521.94/502,768.35
  6. Step 6: Final answer
    x = 185,537.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.