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Finding the Fourth Proportional to 141,201.17, 194,692.99 and 105,328.91

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Solution

The fourth proportional to 141,201.17, 194,692.99 and 105,328.91 is: 145,231.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,201.17 : 194,692.99 = 105,328.91 : x
  2. Step 2: Convert to fraction form
    141,201.17/194,692.99 = 105,328.91/x
  3. Step 3: Cross multiply
    141,201.17x = 194,692.99 × 105,328.91
  4. Step 4: Simplify right side
    141,201.17x = 20,506,800,421.34
  5. Step 5: Solve for x
    x = 20,506,800,421.34/141,201.17
  6. Step 6: Final answer
    x = 145,231.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.