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Finding the Fourth Proportional to 164,807.60, 247,729.80 and 161,697.20

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Solution

The fourth proportional to 164,807.60, 247,729.80 and 161,697.20 is: 243,054.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,807.60 : 247,729.80 = 161,697.20 : x
  2. Step 2: Convert to fraction form
    164,807.60/247,729.80 = 161,697.20/x
  3. Step 3: Cross multiply
    164,807.60x = 247,729.80 × 161,697.20
  4. Step 4: Simplify right side
    164,807.60x = 40,057,215,016.56
  5. Step 5: Solve for x
    x = 40,057,215,016.56/164,807.60
  6. Step 6: Final answer
    x = 243,054.42

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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.