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Finding the Fourth Proportional to 248,858.70, 373,288.05 and 91,200.30

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Solution

The fourth proportional to 248,858.70, 373,288.05 and 91,200.30 is: 136,800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,858.70 : 373,288.05 = 91,200.30 : x
  2. Step 2: Convert to fraction form
    248,858.70/373,288.05 = 91,200.30/x
  3. Step 3: Cross multiply
    248,858.70x = 373,288.05 × 91,200.30
  4. Step 4: Simplify right side
    248,858.70x = 34,043,982,146.42
  5. Step 5: Solve for x
    x = 34,043,982,146.42/248,858.70
  6. Step 6: Final answer
    x = 136,800.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.