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Finding the Fourth Proportional to 353,121.80, 529,682.70 and 175,656.20

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Solution

The fourth proportional to 353,121.80, 529,682.70 and 175,656.20 is: 263,484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,121.80 : 529,682.70 = 175,656.20 : x
  2. Step 2: Convert to fraction form
    353,121.80/529,682.70 = 175,656.20/x
  3. Step 3: Cross multiply
    353,121.80x = 529,682.70 × 175,656.20
  4. Step 4: Simplify right side
    353,121.80x = 93,042,050,287.74
  5. Step 5: Solve for x
    x = 93,042,050,287.74/353,121.80
  6. Step 6: Final answer
    x = 263,484.30

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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.