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Finding the Fourth Proportional to 169,670.60, 254,609.90 and 69,878.60

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Solution

The fourth proportional to 169,670.60, 254,609.90 and 69,878.60 is: 104,860.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,670.60 : 254,609.90 = 69,878.60 : x
  2. Step 2: Convert to fraction form
    169,670.60/254,609.90 = 69,878.60/x
  3. Step 3: Cross multiply
    169,670.60x = 254,609.90 × 69,878.60
  4. Step 4: Simplify right side
    169,670.60x = 17,791,783,358.14
  5. Step 5: Solve for x
    x = 17,791,783,358.14/169,670.60
  6. Step 6: Final answer
    x = 104,860.73

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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.