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Finding the Fourth Proportional to 97,805.80, 134,986.98 and 60,106.60

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Solution

The fourth proportional to 97,805.80, 134,986.98 and 60,106.60 is: 82,956.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,805.80 : 134,986.98 = 60,106.60 : x
  2. Step 2: Convert to fraction form
    97,805.80/134,986.98 = 60,106.60/x
  3. Step 3: Cross multiply
    97,805.80x = 134,986.98 × 60,106.60
  4. Step 4: Simplify right side
    97,805.80x = 8,113,608,412.07
  5. Step 5: Solve for x
    x = 8,113,608,412.07/97,805.80
  6. Step 6: Final answer
    x = 82,956.31

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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.