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Finding the Fourth Proportional to 85,352.68, 117,769.11 and 49,047.11

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Solution

The fourth proportional to 85,352.68, 117,769.11 and 49,047.11 is: 67,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,352.68 : 117,769.11 = 49,047.11 : x
  2. Step 2: Convert to fraction form
    85,352.68/117,769.11 = 49,047.11/x
  3. Step 3: Cross multiply
    85,352.68x = 117,769.11 × 49,047.11
  4. Step 4: Simplify right side
    85,352.68x = 5,776,234,492.77
  5. Step 5: Solve for x
    x = 5,776,234,492.77/85,352.68
  6. Step 6: Final answer
    x = 67,674.90

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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.