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Finding the Fourth Proportional to 89,312.59, 133,980.77 and 47,194.39

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Solution

The fourth proportional to 89,312.59, 133,980.77 and 47,194.39 is: 70,797.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,312.59 : 133,980.77 = 47,194.39 : x
  2. Step 2: Convert to fraction form
    89,312.59/133,980.77 = 47,194.39/x
  3. Step 3: Cross multiply
    89,312.59x = 133,980.77 × 47,194.39
  4. Step 4: Simplify right side
    89,312.59x = 6,323,140,711.88
  5. Step 5: Solve for x
    x = 6,323,140,711.88/89,312.59
  6. Step 6: Final answer
    x = 70,797.87

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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.