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Finding the Fourth Proportional to 203,015.52, 280,097.01 and 118,116.18

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Solution

The fourth proportional to 203,015.52, 280,097.01 and 118,116.18 is: 162,962.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,015.52 : 280,097.01 = 118,116.18 : x
  2. Step 2: Convert to fraction form
    203,015.52/280,097.01 = 118,116.18/x
  3. Step 3: Cross multiply
    203,015.52x = 280,097.01 × 118,116.18
  4. Step 4: Simplify right side
    203,015.52x = 33,083,990,343.92
  5. Step 5: Solve for x
    x = 33,083,990,343.92/203,015.52
  6. Step 6: Final answer
    x = 162,962.86

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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.