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Finding the Fourth Proportional to 554,323.95, 831,478.65 and 133,596.18

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Solution

The fourth proportional to 554,323.95, 831,478.65 and 133,596.18 is: 200,392.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,323.95 : 831,478.65 = 133,596.18 : x
  2. Step 2: Convert to fraction form
    554,323.95/831,478.65 = 133,596.18/x
  3. Step 3: Cross multiply
    554,323.95x = 831,478.65 × 133,596.18
  4. Step 4: Simplify right side
    554,323.95x = 111,082,371,391.56
  5. Step 5: Solve for x
    x = 111,082,371,391.56/554,323.95
  6. Step 6: Final answer
    x = 200,392.52

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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.