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Finding the Fourth Proportional to 189,029.70, 265,428.90 and 189,029.70

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Solution

The fourth proportional to 189,029.70, 265,428.90 and 189,029.70 is: 265,428.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,029.70 : 265,428.90 = 189,029.70 : x
  2. Step 2: Convert to fraction form
    189,029.70/265,428.90 = 189,029.70/x
  3. Step 3: Cross multiply
    189,029.70x = 265,428.90 × 189,029.70
  4. Step 4: Simplify right side
    189,029.70x = 50,173,945,338.33
  5. Step 5: Solve for x
    x = 50,173,945,338.33/189,029.70
  6. Step 6: Final answer
    x = 265,428.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.