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Finding the Fourth Proportional to 212,809.44, 319,116.16 and 62,996.16

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Solution

The fourth proportional to 212,809.44, 319,116.16 and 62,996.16 is: 94,465.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,809.44 : 319,116.16 = 62,996.16 : x
  2. Step 2: Convert to fraction form
    212,809.44/319,116.16 = 62,996.16/x
  3. Step 3: Cross multiply
    212,809.44x = 319,116.16 × 62,996.16
  4. Step 4: Simplify right side
    212,809.44x = 20,103,092,673.95
  5. Step 5: Solve for x
    x = 20,103,092,673.95/212,809.44
  6. Step 6: Final answer
    x = 94,465.23

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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.