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Finding the Fourth Proportional to 169,484.13, 253,911.65 and 121,353.41

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Solution

The fourth proportional to 169,484.13, 253,911.65 and 121,353.41 is: 181,804.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,484.13 : 253,911.65 = 121,353.41 : x
  2. Step 2: Convert to fraction form
    169,484.13/253,911.65 = 121,353.41/x
  3. Step 3: Cross multiply
    169,484.13x = 253,911.65 × 121,353.41
  4. Step 4: Simplify right side
    169,484.13x = 30,813,044,594.24
  5. Step 5: Solve for x
    x = 30,813,044,594.24/169,484.13
  6. Step 6: Final answer
    x = 181,804.90

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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.