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Finding the Fourth Proportional to 93,940.51, 129,643.13 and 53,667.34

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Solution

The fourth proportional to 93,940.51, 129,643.13 and 53,667.34 is: 74,063.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,940.51 : 129,643.13 = 53,667.34 : x
  2. Step 2: Convert to fraction form
    93,940.51/129,643.13 = 53,667.34/x
  3. Step 3: Cross multiply
    93,940.51x = 129,643.13 × 53,667.34
  4. Step 4: Simplify right side
    93,940.51x = 6,957,601,936.37
  5. Step 5: Solve for x
    x = 6,957,601,936.37/93,940.51
  6. Step 6: Final answer
    x = 74,063.91

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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.