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Finding the Fourth Proportional to 67,116.70, 100,707.45 and 47,352.70

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Solution

The fourth proportional to 67,116.70, 100,707.45 and 47,352.70 is: 71,051.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,116.70 : 100,707.45 = 47,352.70 : x
  2. Step 2: Convert to fraction form
    67,116.70/100,707.45 = 47,352.70/x
  3. Step 3: Cross multiply
    67,116.70x = 100,707.45 × 47,352.70
  4. Step 4: Simplify right side
    67,116.70x = 4,768,769,667.62
  5. Step 5: Solve for x
    x = 4,768,769,667.62/67,116.70
  6. Step 6: Final answer
    x = 71,051.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.