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Finding the Fourth Proportional to 296,513.80, 444,828.30 and 128,033.80

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Solution

The fourth proportional to 296,513.80, 444,828.30 and 128,033.80 is: 192,075.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,513.80 : 444,828.30 = 128,033.80 : x
  2. Step 2: Convert to fraction form
    296,513.80/444,828.30 = 128,033.80/x
  3. Step 3: Cross multiply
    296,513.80x = 444,828.30 × 128,033.80
  4. Step 4: Simplify right side
    296,513.80x = 56,953,057,596.54
  5. Step 5: Solve for x
    x = 56,953,057,596.54/296,513.80
  6. Step 6: Final answer
    x = 192,075.57

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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.