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Finding the Fourth Proportional to 158,615.88, 237,986.10 and 69,807.09

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Solution

The fourth proportional to 158,615.88, 237,986.10 and 69,807.09 is: 104,738.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,615.88 : 237,986.10 = 69,807.09 : x
  2. Step 2: Convert to fraction form
    158,615.88/237,986.10 = 69,807.09/x
  3. Step 3: Cross multiply
    158,615.88x = 237,986.10 × 69,807.09
  4. Step 4: Simplify right side
    158,615.88x = 16,613,117,101.45
  5. Step 5: Solve for x
    x = 16,613,117,101.45/158,615.88
  6. Step 6: Final answer
    x = 104,738.04

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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.