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Finding the Fourth Proportional to 554,393.84, 831,592 and 133,670.16

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Solution

The fourth proportional to 554,393.84, 831,592 and 133,670.16 is: 200,505.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,393.84 : 831,592 = 133,670.16 : x
  2. Step 2: Convert to fraction form
    554,393.84/831,592 = 133,670.16/x
  3. Step 3: Cross multiply
    554,393.84x = 831,592 × 133,670.16
  4. Step 4: Simplify right side
    554,393.84x = 111,159,035,694.72
  5. Step 5: Solve for x
    x = 111,159,035,694.72/554,393.84
  6. Step 6: Final answer
    x = 200,505.54

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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.