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Finding the Fourth Proportional to 79,566.50, 109,129.05 and 70,598.44

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Solution

The fourth proportional to 79,566.50, 109,129.05 and 70,598.44 is: 96,828.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,566.50 : 109,129.05 = 70,598.44 : x
  2. Step 2: Convert to fraction form
    79,566.50/109,129.05 = 70,598.44/x
  3. Step 3: Cross multiply
    79,566.50x = 109,129.05 × 70,598.44
  4. Step 4: Simplify right side
    79,566.50x = 7,704,340,688.68
  5. Step 5: Solve for x
    x = 7,704,340,688.68/79,566.50
  6. Step 6: Final answer
    x = 96,828.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.