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Finding the Fourth Proportional to 353,073.32, 529,311.45 and 153,243.50

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Solution

The fourth proportional to 353,073.32, 529,311.45 and 153,243.50 is: 229,735.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,073.32 : 529,311.45 = 153,243.50 : x
  2. Step 2: Convert to fraction form
    353,073.32/529,311.45 = 153,243.50/x
  3. Step 3: Cross multiply
    353,073.32x = 529,311.45 × 153,243.50
  4. Step 4: Simplify right side
    353,073.32x = 81,113,539,188.08
  5. Step 5: Solve for x
    x = 81,113,539,188.08/353,073.32
  6. Step 6: Final answer
    x = 229,735.68

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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.