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Finding the Fourth Proportional to 373,307.51, 515,164.88 and 203,541.64

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Solution

The fourth proportional to 373,307.51, 515,164.88 and 203,541.64 is: 280,887.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,307.51 : 515,164.88 = 203,541.64 : x
  2. Step 2: Convert to fraction form
    373,307.51/515,164.88 = 203,541.64/x
  3. Step 3: Cross multiply
    373,307.51x = 515,164.88 × 203,541.64
  4. Step 4: Simplify right side
    373,307.51x = 104,857,503,766.55
  5. Step 5: Solve for x
    x = 104,857,503,766.55/373,307.51
  6. Step 6: Final answer
    x = 280,887.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.