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Finding the Fourth Proportional to 93,299, 128,752.26 and 50,857.40

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Solution

The fourth proportional to 93,299, 128,752.26 and 50,857.40 is: 70,183.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,299 : 128,752.26 = 50,857.40 : x
  2. Step 2: Convert to fraction form
    93,299/128,752.26 = 50,857.40/x
  3. Step 3: Cross multiply
    93,299x = 128,752.26 × 50,857.40
  4. Step 4: Simplify right side
    93,299x = 6,548,005,187.72
  5. Step 5: Solve for x
    x = 6,548,005,187.72/93,299
  6. Step 6: Final answer
    x = 70,183.02

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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.