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Finding the Fourth Proportional to 188,348.40, 282,983.40 and 141,692.40

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Solution

The fourth proportional to 188,348.40, 282,983.40 and 141,692.40 is: 212,885.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,348.40 : 282,983.40 = 141,692.40 : x
  2. Step 2: Convert to fraction form
    188,348.40/282,983.40 = 141,692.40/x
  3. Step 3: Cross multiply
    188,348.40x = 282,983.40 × 141,692.40
  4. Step 4: Simplify right side
    188,348.40x = 40,096,597,106.16
  5. Step 5: Solve for x
    x = 40,096,597,106.16/188,348.40
  6. Step 6: Final answer
    x = 212,885.25

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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.