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Finding the Fourth Proportional to 169,346.96, 254,027.46 and 69,436.70

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Solution

The fourth proportional to 169,346.96, 254,027.46 and 69,436.70 is: 104,157.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,346.96 : 254,027.46 = 69,436.70 : x
  2. Step 2: Convert to fraction form
    169,346.96/254,027.46 = 69,436.70/x
  3. Step 3: Cross multiply
    169,346.96x = 254,027.46 × 69,436.70
  4. Step 4: Simplify right side
    169,346.96x = 17,638,828,531.78
  5. Step 5: Solve for x
    x = 17,638,828,531.78/169,346.96
  6. Step 6: Final answer
    x = 104,157.93

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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.