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Finding the Fourth Proportional to 186,079.96, 256,848.83 and 105,561.01

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Solution

The fourth proportional to 186,079.96, 256,848.83 and 105,561.01 is: 145,707.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,079.96 : 256,848.83 = 105,561.01 : x
  2. Step 2: Convert to fraction form
    186,079.96/256,848.83 = 105,561.01/x
  3. Step 3: Cross multiply
    186,079.96x = 256,848.83 × 105,561.01
  4. Step 4: Simplify right side
    186,079.96x = 27,113,221,912.12
  5. Step 5: Solve for x
    x = 27,113,221,912.12/186,079.96
  6. Step 6: Final answer
    x = 145,707.37

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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.