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Finding the Fourth Proportional to 554,080.59, 831,121.07 and 133,356.47

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Solution

The fourth proportional to 554,080.59, 831,121.07 and 133,356.47 is: 200,034.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,080.59 : 831,121.07 = 133,356.47 : x
  2. Step 2: Convert to fraction form
    554,080.59/831,121.07 = 133,356.47/x
  3. Step 3: Cross multiply
    554,080.59x = 831,121.07 × 133,356.47
  4. Step 4: Simplify right side
    554,080.59x = 110,835,367,215.44
  5. Step 5: Solve for x
    x = 110,835,367,215.44/554,080.59
  6. Step 6: Final answer
    x = 200,034.74

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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.