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Finding the Fourth Proportional to 402,771.76, 604,118.58 and 122,291.44

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Solution

The fourth proportional to 402,771.76, 604,118.58 and 122,291.44 is: 183,425.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,771.76 : 604,118.58 = 122,291.44 : x
  2. Step 2: Convert to fraction form
    402,771.76/604,118.58 = 122,291.44/x
  3. Step 3: Cross multiply
    402,771.76x = 604,118.58 × 122,291.44
  4. Step 4: Simplify right side
    402,771.76x = 73,878,531,078.96
  5. Step 5: Solve for x
    x = 73,878,531,078.96/402,771.76
  6. Step 6: Final answer
    x = 183,425.30

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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.