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Finding the Fourth Proportional to 141,894.87, 212,842.31 and 48,401.43

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Solution

The fourth proportional to 141,894.87, 212,842.31 and 48,401.43 is: 72,602.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,894.87 : 212,842.31 = 48,401.43 : x
  2. Step 2: Convert to fraction form
    141,894.87/212,842.31 = 48,401.43/x
  3. Step 3: Cross multiply
    141,894.87x = 212,842.31 × 48,401.43
  4. Step 4: Simplify right side
    141,894.87x = 10,301,871,926.50
  5. Step 5: Solve for x
    x = 10,301,871,926.50/141,894.87
  6. Step 6: Final answer
    x = 72,602.15

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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.