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Finding the Fourth Proportional to 57,328.75, 79,120.95 and 34,667.90

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Solution

The fourth proportional to 57,328.75, 79,120.95 and 34,667.90 is: 47,846.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,328.75 : 79,120.95 = 34,667.90 : x
  2. Step 2: Convert to fraction form
    57,328.75/79,120.95 = 34,667.90/x
  3. Step 3: Cross multiply
    57,328.75x = 79,120.95 × 34,667.90
  4. Step 4: Simplify right side
    57,328.75x = 2,742,956,786.90
  5. Step 5: Solve for x
    x = 2,742,956,786.90/57,328.75
  6. Step 6: Final answer
    x = 47,846.10

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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.