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Finding the Fourth Proportional to 164,081.60, 246,122.40 and 70,769.60

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Solution

The fourth proportional to 164,081.60, 246,122.40 and 70,769.60 is: 106,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,081.60 : 246,122.40 = 70,769.60 : x
  2. Step 2: Convert to fraction form
    164,081.60/246,122.40 = 70,769.60/x
  3. Step 3: Cross multiply
    164,081.60x = 246,122.40 × 70,769.60
  4. Step 4: Simplify right side
    164,081.60x = 17,417,983,799.04
  5. Step 5: Solve for x
    x = 17,417,983,799.04/164,081.60
  6. Step 6: Final answer
    x = 106,154.40

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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.