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Finding the Fourth Proportional to 326,705.49, 450,838.62 and 181,521.50

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Solution

The fourth proportional to 326,705.49, 450,838.62 and 181,521.50 is: 250,491.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,705.49 : 450,838.62 = 181,521.50 : x
  2. Step 2: Convert to fraction form
    326,705.49/450,838.62 = 181,521.50/x
  3. Step 3: Cross multiply
    326,705.49x = 450,838.62 × 181,521.50
  4. Step 4: Simplify right side
    326,705.49x = 81,836,900,306.14
  5. Step 5: Solve for x
    x = 81,836,900,306.14/326,705.49
  6. Step 6: Final answer
    x = 250,491.35

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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.