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Finding the Fourth Proportional to 79,358.55, 109,514.48 and 43,549.16

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Solution

The fourth proportional to 79,358.55, 109,514.48 and 43,549.16 is: 60,097.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,358.55 : 109,514.48 = 43,549.16 : x
  2. Step 2: Convert to fraction form
    79,358.55/109,514.48 = 43,549.16/x
  3. Step 3: Cross multiply
    79,358.55x = 109,514.48 × 43,549.16
  4. Step 4: Simplify right side
    79,358.55x = 4,769,263,611.84
  5. Step 5: Solve for x
    x = 4,769,263,611.84/79,358.55
  6. Step 6: Final answer
    x = 60,097.67

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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.