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Finding the Fourth Proportional to 70,174.16, 105,286.08 and 43,848.08

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Solution

The fourth proportional to 70,174.16, 105,286.08 and 43,848.08 is: 65,787.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,174.16 : 105,286.08 = 43,848.08 : x
  2. Step 2: Convert to fraction form
    70,174.16/105,286.08 = 43,848.08/x
  3. Step 3: Cross multiply
    70,174.16x = 105,286.08 × 43,848.08
  4. Step 4: Simplify right side
    70,174.16x = 4,616,592,458.73
  5. Step 5: Solve for x
    x = 4,616,592,458.73/70,174.16
  6. Step 6: Final answer
    x = 65,787.64

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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.