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Finding the Fourth Proportional to 554,327.65, 831,484.18 and 133,599.88

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Solution

The fourth proportional to 554,327.65, 831,484.18 and 133,599.88 is: 200,398.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,327.65 : 831,484.18 = 133,599.88 : x
  2. Step 2: Convert to fraction form
    554,327.65/831,484.18 = 133,599.88/x
  3. Step 3: Cross multiply
    554,327.65x = 831,484.18 × 133,599.88
  4. Step 4: Simplify right side
    554,327.65x = 111,086,181,844.48
  5. Step 5: Solve for x
    x = 111,086,181,844.48/554,327.65
  6. Step 6: Final answer
    x = 200,398.05

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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.