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Finding the Fourth Proportional to 353,178.51, 487,392.44 and 192,034.65

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Solution

The fourth proportional to 353,178.51, 487,392.44 and 192,034.65 is: 265,011.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,178.51 : 487,392.44 = 192,034.65 : x
  2. Step 2: Convert to fraction form
    353,178.51/487,392.44 = 192,034.65/x
  3. Step 3: Cross multiply
    353,178.51x = 487,392.44 × 192,034.65
  4. Step 4: Simplify right side
    353,178.51x = 93,596,236,628.05
  5. Step 5: Solve for x
    x = 93,596,236,628.05/353,178.51
  6. Step 6: Final answer
    x = 265,011.13

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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.