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Finding the Fourth Proportional to 182,903.80, 274,938.90 and 172,406.20

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Solution

The fourth proportional to 182,903.80, 274,938.90 and 172,406.20 is: 259,159.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,903.80 : 274,938.90 = 172,406.20 : x
  2. Step 2: Convert to fraction form
    182,903.80/274,938.90 = 172,406.20/x
  3. Step 3: Cross multiply
    182,903.80x = 274,938.90 × 172,406.20
  4. Step 4: Simplify right side
    182,903.80x = 47,401,170,981.18
  5. Step 5: Solve for x
    x = 47,401,170,981.18/182,903.80
  6. Step 6: Final answer
    x = 259,159.03

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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.