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Finding the Fourth Proportional to 193,041.80, 289,427.70 and 114,115.40

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Solution

The fourth proportional to 193,041.80, 289,427.70 and 114,115.40 is: 171,093.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,041.80 : 289,427.70 = 114,115.40 : x
  2. Step 2: Convert to fraction form
    193,041.80/289,427.70 = 114,115.40/x
  3. Step 3: Cross multiply
    193,041.80x = 289,427.70 × 114,115.40
  4. Step 4: Simplify right side
    193,041.80x = 33,028,157,756.58
  5. Step 5: Solve for x
    x = 33,028,157,756.58/193,041.80
  6. Step 6: Final answer
    x = 171,093.30

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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.