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Finding the Fourth Proportional to 67,358.81, 101,055.38 and 19,975.64

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Solution

The fourth proportional to 67,358.81, 101,055.38 and 19,975.64 is: 29,968.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,358.81 : 101,055.38 = 19,975.64 : x
  2. Step 2: Convert to fraction form
    67,358.81/101,055.38 = 19,975.64/x
  3. Step 3: Cross multiply
    67,358.81x = 101,055.38 × 19,975.64
  4. Step 4: Simplify right side
    67,358.81x = 2,018,645,285.79
  5. Step 5: Solve for x
    x = 2,018,645,285.79/67,358.81
  6. Step 6: Final answer
    x = 29,968.54

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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.