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Finding the Fourth Proportional to 369,840.87, 554,777.16 and 145,249.98

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Solution

The fourth proportional to 369,840.87, 554,777.16 and 145,249.98 is: 217,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,840.87 : 554,777.16 = 145,249.98 : x
  2. Step 2: Convert to fraction form
    369,840.87/554,777.16 = 145,249.98/x
  3. Step 3: Cross multiply
    369,840.87x = 554,777.16 × 145,249.98
  4. Step 4: Simplify right side
    369,840.87x = 80,581,371,394.46
  5. Step 5: Solve for x
    x = 80,581,371,394.46/369,840.87
  6. Step 6: Final answer
    x = 217,881.20

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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.