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Finding the Fourth Proportional to 185,090.41, 277,746.63 and 79,909.30

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Solution

The fourth proportional to 185,090.41, 277,746.63 and 79,909.30 is: 119,911.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,090.41 : 277,746.63 = 79,909.30 : x
  2. Step 2: Convert to fraction form
    185,090.41/277,746.63 = 79,909.30/x
  3. Step 3: Cross multiply
    185,090.41x = 277,746.63 × 79,909.30
  4. Step 4: Simplify right side
    185,090.41x = 22,194,538,780.66
  5. Step 5: Solve for x
    x = 22,194,538,780.66/185,090.41
  6. Step 6: Final answer
    x = 119,911.88

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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.