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Finding the Fourth Proportional to 169,861.21, 254,822.46 and 69,966.88

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Solution

The fourth proportional to 169,861.21, 254,822.46 and 69,966.88 is: 104,962.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,861.21 : 254,822.46 = 69,966.88 : x
  2. Step 2: Convert to fraction form
    169,861.21/254,822.46 = 69,966.88/x
  3. Step 3: Cross multiply
    169,861.21x = 254,822.46 × 69,966.88
  4. Step 4: Simplify right side
    169,861.21x = 17,829,132,480.12
  5. Step 5: Solve for x
    x = 17,829,132,480.12/169,861.21
  6. Step 6: Final answer
    x = 104,962.94

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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.