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Finding the Fourth Proportional to 207,237.02, 310,848.24 and 66,992

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Solution

The fourth proportional to 207,237.02, 310,848.24 and 66,992 is: 100,485.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,237.02 : 310,848.24 = 66,992 : x
  2. Step 2: Convert to fraction form
    207,237.02/310,848.24 = 66,992/x
  3. Step 3: Cross multiply
    207,237.02x = 310,848.24 × 66,992
  4. Step 4: Simplify right side
    207,237.02x = 20,824,345,294.08
  5. Step 5: Solve for x
    x = 20,824,345,294.08/207,237.02
  6. Step 6: Final answer
    x = 100,485.64

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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.