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Finding the Fourth Proportional to 291,826.99, 437,792.33 and 99,690.94

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Solution

The fourth proportional to 291,826.99, 437,792.33 and 99,690.94 is: 149,554.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,826.99 : 437,792.33 = 99,690.94 : x
  2. Step 2: Convert to fraction form
    291,826.99/437,792.33 = 99,690.94/x
  3. Step 3: Cross multiply
    291,826.99x = 437,792.33 × 99,690.94
  4. Step 4: Simplify right side
    291,826.99x = 43,643,928,902.49
  5. Step 5: Solve for x
    x = 43,643,928,902.49/291,826.99
  6. Step 6: Final answer
    x = 149,554.12

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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.