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Finding the Fourth Proportional to 394,368.38, 591,632.17 and 124,538.68

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Solution

The fourth proportional to 394,368.38, 591,632.17 and 124,538.68 is: 186,833.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,368.38 : 591,632.17 = 124,538.68 : x
  2. Step 2: Convert to fraction form
    394,368.38/591,632.17 = 124,538.68/x
  3. Step 3: Cross multiply
    394,368.38x = 591,632.17 × 124,538.68
  4. Step 4: Simplify right side
    394,368.38x = 73,681,089,925.53
  5. Step 5: Solve for x
    x = 73,681,089,925.53/394,368.38
  6. Step 6: Final answer
    x = 186,833.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.