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Finding the Fourth Proportional to 553,807.53, 830,711.21 and 133,083.41

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Solution

The fourth proportional to 553,807.53, 830,711.21 and 133,083.41 is: 199,625.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,807.53 : 830,711.21 = 133,083.41 : x
  2. Step 2: Convert to fraction form
    553,807.53/830,711.21 = 133,083.41/x
  3. Step 3: Cross multiply
    553,807.53x = 830,711.21 × 133,083.41
  4. Step 4: Simplify right side
    553,807.53x = 110,553,879,347.28
  5. Step 5: Solve for x
    x = 110,553,879,347.28/553,807.53
  6. Step 6: Final answer
    x = 199,625.09

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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.