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Finding the Fourth Proportional to 288,994.80, 433,492.20 and 164,578.80

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Solution

The fourth proportional to 288,994.80, 433,492.20 and 164,578.80 is: 246,868.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,994.80 : 433,492.20 = 164,578.80 : x
  2. Step 2: Convert to fraction form
    288,994.80/433,492.20 = 164,578.80/x
  3. Step 3: Cross multiply
    288,994.80x = 433,492.20 × 164,578.80
  4. Step 4: Simplify right side
    288,994.80x = 71,343,626,085.36
  5. Step 5: Solve for x
    x = 71,343,626,085.36/288,994.80
  6. Step 6: Final answer
    x = 246,868.20

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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.