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Finding the Fourth Proportional to 134,646.99, 185,804.46 and 74,218.11

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Solution

The fourth proportional to 134,646.99, 185,804.46 and 74,218.11 is: 102,416.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,646.99 : 185,804.46 = 74,218.11 : x
  2. Step 2: Convert to fraction form
    134,646.99/185,804.46 = 74,218.11/x
  3. Step 3: Cross multiply
    134,646.99x = 185,804.46 × 74,218.11
  4. Step 4: Simplify right side
    134,646.99x = 13,790,055,850.77
  5. Step 5: Solve for x
    x = 13,790,055,850.77/134,646.99
  6. Step 6: Final answer
    x = 102,416.37

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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.