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Finding the Fourth Proportional to 554,328.27, 831,485.12 and 133,600.50

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Solution

The fourth proportional to 554,328.27, 831,485.12 and 133,600.50 is: 200,398.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,328.27 : 831,485.12 = 133,600.50 : x
  2. Step 2: Convert to fraction form
    554,328.27/831,485.12 = 133,600.50/x
  3. Step 3: Cross multiply
    554,328.27x = 831,485.12 × 133,600.50
  4. Step 4: Simplify right side
    554,328.27x = 111,086,827,106.56
  5. Step 5: Solve for x
    x = 111,086,827,106.56/554,328.27
  6. Step 6: Final answer
    x = 200,398.99

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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.