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Finding the Fourth Proportional to 321,374.94, 443,511.90 and 183,565.98

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Solution

The fourth proportional to 321,374.94, 443,511.90 and 183,565.98 is: 253,329.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,374.94 : 443,511.90 = 183,565.98 : x
  2. Step 2: Convert to fraction form
    321,374.94/443,511.90 = 183,565.98/x
  3. Step 3: Cross multiply
    321,374.94x = 443,511.90 × 183,565.98
  4. Step 4: Simplify right side
    321,374.94x = 81,413,696,565.16
  5. Step 5: Solve for x
    x = 81,413,696,565.16/321,374.94
  6. Step 6: Final answer
    x = 253,329.32

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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.