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Finding the Fourth Proportional to 70,992.84, 97,975.62 and 39,164.52

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Solution

The fourth proportional to 70,992.84, 97,975.62 and 39,164.52 is: 54,050.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,992.84 : 97,975.62 = 39,164.52 : x
  2. Step 2: Convert to fraction form
    70,992.84/97,975.62 = 39,164.52/x
  3. Step 3: Cross multiply
    70,992.84x = 97,975.62 × 39,164.52
  4. Step 4: Simplify right side
    70,992.84x = 3,837,168,129.00
  5. Step 5: Solve for x
    x = 3,837,168,129.00/70,992.84
  6. Step 6: Final answer
    x = 54,050.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.