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Finding the Fourth Proportional to 335,953.50, 503,940.06 and 86,635.50

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Solution

The fourth proportional to 335,953.50, 503,940.06 and 86,635.50 is: 129,955.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,953.50 : 503,940.06 = 86,635.50 : x
  2. Step 2: Convert to fraction form
    335,953.50/503,940.06 = 86,635.50/x
  3. Step 3: Cross multiply
    335,953.50x = 503,940.06 × 86,635.50
  4. Step 4: Simplify right side
    335,953.50x = 43,659,099,068.13
  5. Step 5: Solve for x
    x = 43,659,099,068.13/335,953.50
  6. Step 6: Final answer
    x = 129,955.78

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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.