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Finding the Fourth Proportional to 169,409.40, 254,459.70 and 163,534.20

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Solution

The fourth proportional to 169,409.40, 254,459.70 and 163,534.20 is: 245,634.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,409.40 : 254,459.70 = 163,534.20 : x
  2. Step 2: Convert to fraction form
    169,409.40/254,459.70 = 163,534.20/x
  3. Step 3: Cross multiply
    169,409.40x = 254,459.70 × 163,534.20
  4. Step 4: Simplify right side
    169,409.40x = 41,612,863,471.74
  5. Step 5: Solve for x
    x = 41,612,863,471.74/169,409.40
  6. Step 6: Final answer
    x = 245,634.91

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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.