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Finding the Fourth Proportional to 352,714.40, 529,071.60 and 103,396.40

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Solution

The fourth proportional to 352,714.40, 529,071.60 and 103,396.40 is: 155,094.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,714.40 : 529,071.60 = 103,396.40 : x
  2. Step 2: Convert to fraction form
    352,714.40/529,071.60 = 103,396.40/x
  3. Step 3: Cross multiply
    352,714.40x = 529,071.60 × 103,396.40
  4. Step 4: Simplify right side
    352,714.40x = 54,704,098,782.24
  5. Step 5: Solve for x
    x = 54,704,098,782.24/352,714.40
  6. Step 6: Final answer
    x = 155,094.60

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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.