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Finding the Fourth Proportional to 70,458.46, 105,698.62 and 23,707.69

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Solution

The fourth proportional to 70,458.46, 105,698.62 and 23,707.69 is: 35,565.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,458.46 : 105,698.62 = 23,707.69 : x
  2. Step 2: Convert to fraction form
    70,458.46/105,698.62 = 23,707.69/x
  3. Step 3: Cross multiply
    70,458.46x = 105,698.62 × 23,707.69
  4. Step 4: Simplify right side
    70,458.46x = 2,505,869,881.78
  5. Step 5: Solve for x
    x = 2,505,869,881.78/70,458.46
  6. Step 6: Final answer
    x = 35,565.21

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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.