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Finding the Fourth Proportional to 200,027.10, 300,040.65 and 190,841.70

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Solution

The fourth proportional to 200,027.10, 300,040.65 and 190,841.70 is: 286,262.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,027.10 : 300,040.65 = 190,841.70 : x
  2. Step 2: Convert to fraction form
    200,027.10/300,040.65 = 190,841.70/x
  3. Step 3: Cross multiply
    200,027.10x = 300,040.65 × 190,841.70
  4. Step 4: Simplify right side
    200,027.10x = 57,260,267,715.11
  5. Step 5: Solve for x
    x = 57,260,267,715.11/200,027.10
  6. Step 6: Final answer
    x = 286,262.55

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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.