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Finding the Fourth Proportional to 316,361.40, 474,403.86 and 94,693.56

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Solution

The fourth proportional to 316,361.40, 474,403.86 and 94,693.56 is: 141,998.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,361.40 : 474,403.86 = 94,693.56 : x
  2. Step 2: Convert to fraction form
    316,361.40/474,403.86 = 94,693.56/x
  3. Step 3: Cross multiply
    316,361.40x = 474,403.86 × 94,693.56
  4. Step 4: Simplify right side
    316,361.40x = 44,922,990,381.14
  5. Step 5: Solve for x
    x = 44,922,990,381.14/316,361.40
  6. Step 6: Final answer
    x = 141,998.96

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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.