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Finding the Fourth Proportional to 207,063.40, 310,660.62 and 73,940.68

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Solution

The fourth proportional to 207,063.40, 310,660.62 and 73,940.68 is: 110,934.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,063.40 : 310,660.62 = 73,940.68 : x
  2. Step 2: Convert to fraction form
    207,063.40/310,660.62 = 73,940.68/x
  3. Step 3: Cross multiply
    207,063.40x = 310,660.62 × 73,940.68
  4. Step 4: Simplify right side
    207,063.40x = 22,970,457,492.02
  5. Step 5: Solve for x
    x = 22,970,457,492.02/207,063.40
  6. Step 6: Final answer
    x = 110,934.42

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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.