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Finding the Fourth Proportional to 93,697.36, 129,306.99 and 55,478.73

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Solution

The fourth proportional to 93,697.36, 129,306.99 and 55,478.73 is: 76,563.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,697.36 : 129,306.99 = 55,478.73 : x
  2. Step 2: Convert to fraction form
    93,697.36/129,306.99 = 55,478.73/x
  3. Step 3: Cross multiply
    93,697.36x = 129,306.99 × 55,478.73
  4. Step 4: Simplify right side
    93,697.36x = 7,173,787,585.32
  5. Step 5: Solve for x
    x = 7,173,787,585.32/93,697.36
  6. Step 6: Final answer
    x = 76,563.39

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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.