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Finding the Fourth Proportional to 343,278, 473,743.08 and 192,384.72

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Solution

The fourth proportional to 343,278, 473,743.08 and 192,384.72 is: 265,501.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,278 : 473,743.08 = 192,384.72 : x
  2. Step 2: Convert to fraction form
    343,278/473,743.08 = 192,384.72/x
  3. Step 3: Cross multiply
    343,278x = 473,743.08 × 192,384.72
  4. Step 4: Simplify right side
    343,278x = 91,140,929,797.74
  5. Step 5: Solve for x
    x = 91,140,929,797.74/343,278
  6. Step 6: Final answer
    x = 265,501.81

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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.