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Finding the Fourth Proportional to 203,463.60, 305,195.40 and 92,871.60

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Solution

The fourth proportional to 203,463.60, 305,195.40 and 92,871.60 is: 139,307.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,463.60 : 305,195.40 = 92,871.60 : x
  2. Step 2: Convert to fraction form
    203,463.60/305,195.40 = 92,871.60/x
  3. Step 3: Cross multiply
    203,463.60x = 305,195.40 × 92,871.60
  4. Step 4: Simplify right side
    203,463.60x = 28,343,985,110.64
  5. Step 5: Solve for x
    x = 28,343,985,110.64/203,463.60
  6. Step 6: Final answer
    x = 139,307.40

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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.