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Finding the Fourth Proportional to 245,531.31, 368,295.91 and 68,037.81

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Solution

The fourth proportional to 245,531.31, 368,295.91 and 68,037.81 is: 102,056.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,531.31 : 368,295.91 = 68,037.81 : x
  2. Step 2: Convert to fraction form
    245,531.31/368,295.91 = 68,037.81/x
  3. Step 3: Cross multiply
    245,531.31x = 368,295.91 × 68,037.81
  4. Step 4: Simplify right side
    245,531.31x = 25,058,047,148.36
  5. Step 5: Solve for x
    x = 25,058,047,148.36/245,531.31
  6. Step 6: Final answer
    x = 102,056.42

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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.