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Finding the Fourth Proportional to 163,693.20, 245,194.20 and 136,045.20

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Solution

The fourth proportional to 163,693.20, 245,194.20 and 136,045.20 is: 203,780.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,693.20 : 245,194.20 = 136,045.20 : x
  2. Step 2: Convert to fraction form
    163,693.20/245,194.20 = 136,045.20/x
  3. Step 3: Cross multiply
    163,693.20x = 245,194.20 × 136,045.20
  4. Step 4: Simplify right side
    163,693.20x = 33,357,493,977.84
  5. Step 5: Solve for x
    x = 33,357,493,977.84/163,693.20
  6. Step 6: Final answer
    x = 203,780.57

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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.