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Finding the Fourth Proportional to 372,119.16, 513,670.51 and 263,789.71

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Solution

The fourth proportional to 372,119.16, 513,670.51 and 263,789.71 is: 364,133.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,119.16 : 513,670.51 = 263,789.71 : x
  2. Step 2: Convert to fraction form
    372,119.16/513,670.51 = 263,789.71/x
  3. Step 3: Cross multiply
    372,119.16x = 513,670.51 × 263,789.71
  4. Step 4: Simplify right side
    372,119.16x = 135,500,996,803.41
  5. Step 5: Solve for x
    x = 135,500,996,803.41/372,119.16
  6. Step 6: Final answer
    x = 364,133.35

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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.