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Finding the Fourth Proportional to 353,089.68, 529,634.76 and 103,946.64

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Solution

The fourth proportional to 353,089.68, 529,634.76 and 103,946.64 is: 155,920.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,089.68 : 529,634.76 = 103,946.64 : x
  2. Step 2: Convert to fraction form
    353,089.68/529,634.76 = 103,946.64/x
  3. Step 3: Cross multiply
    353,089.68x = 529,634.76 × 103,946.64
  4. Step 4: Simplify right side
    353,089.68x = 55,053,753,729.21
  5. Step 5: Solve for x
    x = 55,053,753,729.21/353,089.68
  6. Step 6: Final answer
    x = 155,920.03

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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.