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Finding the Fourth Proportional to 167,368.64, 251,052.80 and 42,709.64

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Solution

The fourth proportional to 167,368.64, 251,052.80 and 42,709.64 is: 64,064.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,368.64 : 251,052.80 = 42,709.64 : x
  2. Step 2: Convert to fraction form
    167,368.64/251,052.80 = 42,709.64/x
  3. Step 3: Cross multiply
    167,368.64x = 251,052.80 × 42,709.64
  4. Step 4: Simplify right side
    167,368.64x = 10,722,374,708.99
  5. Step 5: Solve for x
    x = 10,722,374,708.99/167,368.64
  6. Step 6: Final answer
    x = 64,064.42

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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.