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Finding the Fourth Proportional to 352,877.51, 529,336.52 and 100,138.28

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Solution

The fourth proportional to 352,877.51, 529,336.52 and 100,138.28 is: 150,213.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,877.51 : 529,336.52 = 100,138.28 : x
  2. Step 2: Convert to fraction form
    352,877.51/529,336.52 = 100,138.28/x
  3. Step 3: Cross multiply
    352,877.51x = 529,336.52 × 100,138.28
  4. Step 4: Simplify right side
    352,877.51x = 53,006,845,882.13
  5. Step 5: Solve for x
    x = 53,006,845,882.13/352,877.51
  6. Step 6: Final answer
    x = 150,213.16

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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.