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Finding the Fourth Proportional to 352,713.40, 529,070.10 and 103,395.40

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Solution

The fourth proportional to 352,713.40, 529,070.10 and 103,395.40 is: 155,093.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,713.40 : 529,070.10 = 103,395.40 : x
  2. Step 2: Convert to fraction form
    352,713.40/529,070.10 = 103,395.40/x
  3. Step 3: Cross multiply
    352,713.40x = 529,070.10 × 103,395.40
  4. Step 4: Simplify right side
    352,713.40x = 54,703,414,617.54
  5. Step 5: Solve for x
    x = 54,703,414,617.54/352,713.40
  6. Step 6: Final answer
    x = 155,093.10

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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.