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Finding the Fourth Proportional to 394,674.63, 592,010.55 and 141,954.69

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Solution

The fourth proportional to 394,674.63, 592,010.55 and 141,954.69 is: 212,931.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,674.63 : 592,010.55 = 141,954.69 : x
  2. Step 2: Convert to fraction form
    394,674.63/592,010.55 = 141,954.69/x
  3. Step 3: Cross multiply
    394,674.63x = 592,010.55 × 141,954.69
  4. Step 4: Simplify right side
    394,674.63x = 84,038,674,101.98
  5. Step 5: Solve for x
    x = 84,038,674,101.98/394,674.63
  6. Step 6: Final answer
    x = 212,931.53

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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.