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Finding the Fourth Proportional to 169,242.76, 253,835.46 and 79,294.84

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Solution

The fourth proportional to 169,242.76, 253,835.46 and 79,294.84 is: 118,928.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,242.76 : 253,835.46 = 79,294.84 : x
  2. Step 2: Convert to fraction form
    169,242.76/253,835.46 = 79,294.84/x
  3. Step 3: Cross multiply
    169,242.76x = 253,835.46 × 79,294.84
  4. Step 4: Simplify right side
    169,242.76x = 20,127,842,187.03
  5. Step 5: Solve for x
    x = 20,127,842,187.03/169,242.76
  6. Step 6: Final answer
    x = 118,928.82

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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.