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Finding the Fourth Proportional to 186,940.56, 257,970.69 and 102,058.32

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Solution

The fourth proportional to 186,940.56, 257,970.69 and 102,058.32 is: 140,836.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,940.56 : 257,970.69 = 102,058.32 : x
  2. Step 2: Convert to fraction form
    186,940.56/257,970.69 = 102,058.32/x
  3. Step 3: Cross multiply
    186,940.56x = 257,970.69 × 102,058.32
  4. Step 4: Simplify right side
    186,940.56x = 26,328,055,230.64
  5. Step 5: Solve for x
    x = 26,328,055,230.64/186,940.56
  6. Step 6: Final answer
    x = 140,836.51

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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.