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Finding the Fourth Proportional to 48,848.40, 73,126.80 and 45,964.80

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Solution

The fourth proportional to 48,848.40, 73,126.80 and 45,964.80 is: 68,810.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,848.40 : 73,126.80 = 45,964.80 : x
  2. Step 2: Convert to fraction form
    48,848.40/73,126.80 = 45,964.80/x
  3. Step 3: Cross multiply
    48,848.40x = 73,126.80 × 45,964.80
  4. Step 4: Simplify right side
    48,848.40x = 3,361,258,736.64
  5. Step 5: Solve for x
    x = 3,361,258,736.64/48,848.40
  6. Step 6: Final answer
    x = 68,810.01

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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.