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Finding the Fourth Proportional to 169,715.20, 254,572.80 and 110,666.20

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Solution

The fourth proportional to 169,715.20, 254,572.80 and 110,666.20 is: 165,999.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,715.20 : 254,572.80 = 110,666.20 : x
  2. Step 2: Convert to fraction form
    169,715.20/254,572.80 = 110,666.20/x
  3. Step 3: Cross multiply
    169,715.20x = 254,572.80 × 110,666.20
  4. Step 4: Simplify right side
    169,715.20x = 28,172,604,399.36
  5. Step 5: Solve for x
    x = 28,172,604,399.36/169,715.20
  6. Step 6: Final answer
    x = 165,999.30

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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.