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Finding the Fourth Proportional to 134,698.85, 185,892.71 and 74,269.31

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Solution

The fourth proportional to 134,698.85, 185,892.71 and 74,269.31 is: 102,496.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,698.85 : 185,892.71 = 74,269.31 : x
  2. Step 2: Convert to fraction form
    134,698.85/185,892.71 = 74,269.31/x
  3. Step 3: Cross multiply
    134,698.85x = 185,892.71 × 74,269.31
  4. Step 4: Simplify right side
    134,698.85x = 13,806,122,004.92
  5. Step 5: Solve for x
    x = 13,806,122,004.92/134,698.85
  6. Step 6: Final answer
    x = 102,496.21

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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.