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Finding the Fourth Proportional to 353,203.52, 529,914.69 and 122,412.20

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Solution

The fourth proportional to 353,203.52, 529,914.69 and 122,412.20 is: 183,656.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,203.52 : 529,914.69 = 122,412.20 : x
  2. Step 2: Convert to fraction form
    353,203.52/529,914.69 = 122,412.20/x
  3. Step 3: Cross multiply
    353,203.52x = 529,914.69 × 122,412.20
  4. Step 4: Simplify right side
    353,203.52x = 64,868,020,365.64
  5. Step 5: Solve for x
    x = 64,868,020,365.64/353,203.52
  6. Step 6: Final answer
    x = 183,656.21

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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.