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Finding the Fourth Proportional to 372,216.84, 513,384.21 and 236,133.42

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Solution

The fourth proportional to 372,216.84, 513,384.21 and 236,133.42 is: 325,689.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,216.84 : 513,384.21 = 236,133.42 : x
  2. Step 2: Convert to fraction form
    372,216.84/513,384.21 = 236,133.42/x
  3. Step 3: Cross multiply
    372,216.84x = 513,384.21 × 236,133.42
  4. Step 4: Simplify right side
    372,216.84x = 121,227,169,281.30
  5. Step 5: Solve for x
    x = 121,227,169,281.30/372,216.84
  6. Step 6: Final answer
    x = 325,689.64

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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.