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Finding the Fourth Proportional to 373,271.36, 515,117.50 and 203,506.72

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Solution

The fourth proportional to 373,271.36, 515,117.50 and 203,506.72 is: 280,840.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,271.36 : 515,117.50 = 203,506.72 : x
  2. Step 2: Convert to fraction form
    373,271.36/515,117.50 = 203,506.72/x
  3. Step 3: Cross multiply
    373,271.36x = 515,117.50 × 203,506.72
  4. Step 4: Simplify right side
    373,271.36x = 104,829,872,839.60
  5. Step 5: Solve for x
    x = 104,829,872,839.60/373,271.36
  6. Step 6: Final answer
    x = 280,840.92

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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.