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Finding the Fourth Proportional to 167,909.55, 251,862.80 and 68,046

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Solution

The fourth proportional to 167,909.55, 251,862.80 and 68,046 is: 102,068.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,909.55 : 251,862.80 = 68,046 : x
  2. Step 2: Convert to fraction form
    167,909.55/251,862.80 = 68,046/x
  3. Step 3: Cross multiply
    167,909.55x = 251,862.80 × 68,046
  4. Step 4: Simplify right side
    167,909.55x = 17,138,255,748.57
  5. Step 5: Solve for x
    x = 17,138,255,748.57/167,909.55
  6. Step 6: Final answer
    x = 102,068.38

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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.