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Finding the Fourth Proportional to 218,816.44, 301,966.72 and 118,214.44

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Solution

The fourth proportional to 218,816.44, 301,966.72 and 118,214.44 is: 163,135.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,816.44 : 301,966.72 = 118,214.44 : x
  2. Step 2: Convert to fraction form
    218,816.44/301,966.72 = 118,214.44/x
  3. Step 3: Cross multiply
    218,816.44x = 301,966.72 × 118,214.44
  4. Step 4: Simplify right side
    218,816.44x = 35,696,825,652.98
  5. Step 5: Solve for x
    x = 35,696,825,652.98/218,816.44
  6. Step 6: Final answer
    x = 163,135.94

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1.5x scale

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.