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Finding the Fourth Proportional to 353,152.94, 487,360.87 and 192,019.03

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Solution

The fourth proportional to 353,152.94, 487,360.87 and 192,019.03 is: 264,991.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,152.94 : 487,360.87 = 192,019.03 : x
  2. Step 2: Convert to fraction form
    353,152.94/487,360.87 = 192,019.03/x
  3. Step 3: Cross multiply
    353,152.94x = 487,360.87 × 192,019.03
  4. Step 4: Simplify right side
    353,152.94x = 93,582,559,818.91
  5. Step 5: Solve for x
    x = 93,582,559,818.91/353,152.94
  6. Step 6: Final answer
    x = 264,991.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.