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Finding the Fourth Proportional to 93,283.39, 128,629.44 and 63,016.19

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Solution

The fourth proportional to 93,283.39, 128,629.44 and 63,016.19 is: 86,893.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,283.39 : 128,629.44 = 63,016.19 : x
  2. Step 2: Convert to fraction form
    93,283.39/128,629.44 = 63,016.19/x
  3. Step 3: Cross multiply
    93,283.39x = 128,629.44 × 63,016.19
  4. Step 4: Simplify right side
    93,283.39x = 8,105,736,587.49
  5. Step 5: Solve for x
    x = 8,105,736,587.49/93,283.39
  6. Step 6: Final answer
    x = 86,893.68

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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.