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Finding the Fourth Proportional to 248,431.61, 342,720.99 and 146,387.41

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Solution

The fourth proportional to 248,431.61, 342,720.99 and 146,387.41 is: 201,947.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,431.61 : 342,720.99 = 146,387.41 : x
  2. Step 2: Convert to fraction form
    248,431.61/342,720.99 = 146,387.41/x
  3. Step 3: Cross multiply
    248,431.61x = 342,720.99 × 146,387.41
  4. Step 4: Simplify right side
    248,431.61x = 50,170,037,221.93
  5. Step 5: Solve for x
    x = 50,170,037,221.93/248,431.61
  6. Step 6: Final answer
    x = 201,947.07

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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.