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Finding the Fourth Proportional to 262,172.83, 361,788.07 and 154,777.45

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Solution

The fourth proportional to 262,172.83, 361,788.07 and 154,777.45 is: 213,586.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,172.83 : 361,788.07 = 154,777.45 : x
  2. Step 2: Convert to fraction form
    262,172.83/361,788.07 = 154,777.45/x
  3. Step 3: Cross multiply
    262,172.83x = 361,788.07 × 154,777.45
  4. Step 4: Simplify right side
    262,172.83x = 55,996,634,915.02
  5. Step 5: Solve for x
    x = 55,996,634,915.02/262,172.83
  6. Step 6: Final answer
    x = 213,586.72

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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.