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Finding the Fourth Proportional to 75,421.92, 104,076.18 and 43,592.88

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Solution

The fourth proportional to 75,421.92, 104,076.18 and 43,592.88 is: 60,154.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,421.92 : 104,076.18 = 43,592.88 : x
  2. Step 2: Convert to fraction form
    75,421.92/104,076.18 = 43,592.88/x
  3. Step 3: Cross multiply
    75,421.92x = 104,076.18 × 43,592.88
  4. Step 4: Simplify right side
    75,421.92x = 4,536,980,425.60
  5. Step 5: Solve for x
    x = 4,536,980,425.60/75,421.92
  6. Step 6: Final answer
    x = 60,154.67

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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.