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Finding the Fourth Proportional to 67,358.60, 101,055.06 and 19,975.42

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Solution

The fourth proportional to 67,358.60, 101,055.06 and 19,975.42 is: 29,968.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,358.60 : 101,055.06 = 19,975.42 : x
  2. Step 2: Convert to fraction form
    67,358.60/101,055.06 = 19,975.42/x
  3. Step 3: Cross multiply
    67,358.60x = 101,055.06 × 19,975.42
  4. Step 4: Simplify right side
    67,358.60x = 2,018,616,661.47
  5. Step 5: Solve for x
    x = 2,018,616,661.47/67,358.60
  6. Step 6: Final answer
    x = 29,968.21

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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.