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Finding the Fourth Proportional to 369,825.69, 554,406.84 and 133,002.75

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Solution

The fourth proportional to 369,825.69, 554,406.84 and 133,002.75 is: 199,384.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,825.69 : 554,406.84 = 133,002.75 : x
  2. Step 2: Convert to fraction form
    369,825.69/554,406.84 = 133,002.75/x
  3. Step 3: Cross multiply
    369,825.69x = 554,406.84 × 133,002.75
  4. Step 4: Simplify right side
    369,825.69x = 73,737,634,338.81
  5. Step 5: Solve for x
    x = 73,737,634,338.81/369,825.69
  6. Step 6: Final answer
    x = 199,384.84

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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.