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Finding the Fourth Proportional to 292,890.84, 439,336.32 and 82,501.44

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Solution

The fourth proportional to 292,890.84, 439,336.32 and 82,501.44 is: 123,752.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,890.84 : 439,336.32 = 82,501.44 : x
  2. Step 2: Convert to fraction form
    292,890.84/439,336.32 = 82,501.44/x
  3. Step 3: Cross multiply
    292,890.84x = 439,336.32 × 82,501.44
  4. Step 4: Simplify right side
    292,890.84x = 36,245,879,044.30
  5. Step 5: Solve for x
    x = 36,245,879,044.30/292,890.84
  6. Step 6: Final answer
    x = 123,752.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.