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Finding the Fourth Proportional to 103,012.91, 154,584.37 and 43,848.49

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Solution

The fourth proportional to 103,012.91, 154,584.37 and 43,848.49 is: 65,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,012.91 : 154,584.37 = 43,848.49 : x
  2. Step 2: Convert to fraction form
    103,012.91/154,584.37 = 43,848.49/x
  3. Step 3: Cross multiply
    103,012.91x = 154,584.37 × 43,848.49
  4. Step 4: Simplify right side
    103,012.91x = 6,778,290,429.18
  5. Step 5: Solve for x
    x = 6,778,290,429.18/103,012.91
  6. Step 6: Final answer
    x = 65,800.40

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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.