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Finding the Fourth Proportional to 136,359.60, 188,202.54 and 82,674.02

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Solution

The fourth proportional to 136,359.60, 188,202.54 and 82,674.02 is: 114,106.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,359.60 : 188,202.54 = 82,674.02 : x
  2. Step 2: Convert to fraction form
    136,359.60/188,202.54 = 82,674.02/x
  3. Step 3: Cross multiply
    136,359.60x = 188,202.54 × 82,674.02
  4. Step 4: Simplify right side
    136,359.60x = 15,559,459,615.00
  5. Step 5: Solve for x
    x = 15,559,459,615.00/136,359.60
  6. Step 6: Final answer
    x = 114,106.08

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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.