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Finding the Fourth Proportional to 97,356.27, 134,412.47 and 74,651.64

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Solution

The fourth proportional to 97,356.27, 134,412.47 and 74,651.64 is: 103,065.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,356.27 : 134,412.47 = 74,651.64 : x
  2. Step 2: Convert to fraction form
    97,356.27/134,412.47 = 74,651.64/x
  3. Step 3: Cross multiply
    97,356.27x = 134,412.47 × 74,651.64
  4. Step 4: Simplify right side
    97,356.27x = 10,034,111,321.95
  5. Step 5: Solve for x
    x = 10,034,111,321.95/97,356.27
  6. Step 6: Final answer
    x = 103,065.90

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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.