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Finding the Fourth Proportional to 93,326.97, 128,811.33 and 55,072.29

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Solution

The fourth proportional to 93,326.97, 128,811.33 and 55,072.29 is: 76,011.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,326.97 : 128,811.33 = 55,072.29 : x
  2. Step 2: Convert to fraction form
    93,326.97/128,811.33 = 55,072.29/x
  3. Step 3: Cross multiply
    93,326.97x = 128,811.33 × 55,072.29
  4. Step 4: Simplify right side
    93,326.97x = 7,093,934,921.05
  5. Step 5: Solve for x
    x = 7,093,934,921.05/93,326.97
  6. Step 6: Final answer
    x = 76,011.63

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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.