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Finding the Fourth Proportional to 246,507, 369,815.89 and 78,037.43

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Solution

The fourth proportional to 246,507, 369,815.89 and 78,037.43 is: 117,073.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,507 : 369,815.89 = 78,037.43 : x
  2. Step 2: Convert to fraction form
    246,507/369,815.89 = 78,037.43/x
  3. Step 3: Cross multiply
    246,507x = 369,815.89 × 78,037.43
  4. Step 4: Simplify right side
    246,507x = 28,859,481,628.76
  5. Step 5: Solve for x
    x = 28,859,481,628.76/246,507
  6. Step 6: Final answer
    x = 117,073.68

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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.