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Finding the Fourth Proportional to 353,298.60, 529,947.90 and 153,714.60

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Solution

The fourth proportional to 353,298.60, 529,947.90 and 153,714.60 is: 230,571.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,298.60 : 529,947.90 = 153,714.60 : x
  2. Step 2: Convert to fraction form
    353,298.60/529,947.90 = 153,714.60/x
  3. Step 3: Cross multiply
    353,298.60x = 529,947.90 × 153,714.60
  4. Step 4: Simplify right side
    353,298.60x = 81,460,729,469.34
  5. Step 5: Solve for x
    x = 81,460,729,469.34/353,298.60
  6. Step 6: Final answer
    x = 230,571.90

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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.