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Finding the Fourth Proportional to 93,930.93, 129,629.97 and 55,713.15

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Solution

The fourth proportional to 93,930.93, 129,629.97 and 55,713.15 is: 76,887.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,930.93 : 129,629.97 = 55,713.15 : x
  2. Step 2: Convert to fraction form
    93,930.93/129,629.97 = 55,713.15/x
  3. Step 3: Cross multiply
    93,930.93x = 129,629.97 × 55,713.15
  4. Step 4: Simplify right side
    93,930.93x = 7,222,093,963.11
  5. Step 5: Solve for x
    x = 7,222,093,963.11/93,930.93
  6. Step 6: Final answer
    x = 76,887.28

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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.