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Finding the Fourth Proportional to 178,752.78, 246,681.90 and 98,183.70

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Solution

The fourth proportional to 178,752.78, 246,681.90 and 98,183.70 is: 135,495.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,752.78 : 246,681.90 = 98,183.70 : x
  2. Step 2: Convert to fraction form
    178,752.78/246,681.90 = 98,183.70/x
  3. Step 3: Cross multiply
    178,752.78x = 246,681.90 × 98,183.70
  4. Step 4: Simplify right side
    178,752.78x = 24,220,141,665.03
  5. Step 5: Solve for x
    x = 24,220,141,665.03/178,752.78
  6. Step 6: Final answer
    x = 135,495.19

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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.