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Finding the Fourth Proportional to 186,398.44, 257,237.12 and 105,833.46

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Solution

The fourth proportional to 186,398.44, 257,237.12 and 105,833.46 is: 146,054.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,398.44 : 257,237.12 = 105,833.46 : x
  2. Step 2: Convert to fraction form
    186,398.44/257,237.12 = 105,833.46/x
  3. Step 3: Cross multiply
    186,398.44x = 257,237.12 × 105,833.46
  4. Step 4: Simplify right side
    186,398.44x = 27,224,294,450.04
  5. Step 5: Solve for x
    x = 27,224,294,450.04/186,398.44
  6. Step 6: Final answer
    x = 146,054.30

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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.