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Finding the Fourth Proportional to 68,228.79, 94,158.33 and 39,549.39

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Solution

The fourth proportional to 68,228.79, 94,158.33 and 39,549.39 is: 54,579.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,228.79 : 94,158.33 = 39,549.39 : x
  2. Step 2: Convert to fraction form
    68,228.79/94,158.33 = 39,549.39/x
  3. Step 3: Cross multiply
    68,228.79x = 94,158.33 × 39,549.39
  4. Step 4: Simplify right side
    68,228.79x = 3,723,904,514.92
  5. Step 5: Solve for x
    x = 3,723,904,514.92/68,228.79
  6. Step 6: Final answer
    x = 54,579.67

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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.