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Finding the Fourth Proportional to 94,538.70, 141,808.05 and 82,874.70

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Solution

The fourth proportional to 94,538.70, 141,808.05 and 82,874.70 is: 124,312.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,538.70 : 141,808.05 = 82,874.70 : x
  2. Step 2: Convert to fraction form
    94,538.70/141,808.05 = 82,874.70/x
  3. Step 3: Cross multiply
    94,538.70x = 141,808.05 × 82,874.70
  4. Step 4: Simplify right side
    94,538.70x = 11,752,299,601.34
  5. Step 5: Solve for x
    x = 11,752,299,601.34/94,538.70
  6. Step 6: Final answer
    x = 124,312.05

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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.