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Finding the Fourth Proportional to 163,354.93, 245,060.94 and 74,617.40

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Solution

The fourth proportional to 163,354.93, 245,060.94 and 74,617.40 is: 111,939.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,354.93 : 245,060.94 = 74,617.40 : x
  2. Step 2: Convert to fraction form
    163,354.93/245,060.94 = 74,617.40/x
  3. Step 3: Cross multiply
    163,354.93x = 245,060.94 × 74,617.40
  4. Step 4: Simplify right side
    163,354.93x = 18,285,811,076.82
  5. Step 5: Solve for x
    x = 18,285,811,076.82/163,354.93
  6. Step 6: Final answer
    x = 111,939.15

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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.