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Finding the Fourth Proportional to 291,694.92, 437,606.58 and 89,292.63

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Solution

The fourth proportional to 291,694.92, 437,606.58 and 89,292.63 is: 133,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,694.92 : 437,606.58 = 89,292.63 : x
  2. Step 2: Convert to fraction form
    291,694.92/437,606.58 = 89,292.63/x
  3. Step 3: Cross multiply
    291,694.92x = 437,606.58 × 89,292.63
  4. Step 4: Simplify right side
    291,694.92x = 39,075,042,433.51
  5. Step 5: Solve for x
    x = 39,075,042,433.51/291,694.92
  6. Step 6: Final answer
    x = 133,958.60

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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.