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Finding the Fourth Proportional to 353,144.80, 529,256.40 and 163,583.20

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Solution

The fourth proportional to 353,144.80, 529,256.40 and 163,583.20 is: 245,161.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,144.80 : 529,256.40 = 163,583.20 : x
  2. Step 2: Convert to fraction form
    353,144.80/529,256.40 = 163,583.20/x
  3. Step 3: Cross multiply
    353,144.80x = 529,256.40 × 163,583.20
  4. Step 4: Simplify right side
    353,144.80x = 86,577,455,532.48
  5. Step 5: Solve for x
    x = 86,577,455,532.48/353,144.80
  6. Step 6: Final answer
    x = 245,161.35

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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.