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Finding the Fourth Proportional to 554,398.02, 831,589.74 and 133,670.52

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Solution

The fourth proportional to 554,398.02, 831,589.74 and 133,670.52 is: 200,504.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,398.02 : 831,589.74 = 133,670.52 : x
  2. Step 2: Convert to fraction form
    554,398.02/831,589.74 = 133,670.52/x
  3. Step 3: Cross multiply
    554,398.02x = 831,589.74 × 133,670.52
  4. Step 4: Simplify right side
    554,398.02x = 111,159,032,972.47
  5. Step 5: Solve for x
    x = 111,159,032,972.47/554,398.02
  6. Step 6: Final answer
    x = 200,504.02

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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.