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Finding the Fourth Proportional to 353,291.87, 529,925.45 and 100,573.76

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Solution

The fourth proportional to 353,291.87, 529,925.45 and 100,573.76 is: 150,857.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,291.87 : 529,925.45 = 100,573.76 : x
  2. Step 2: Convert to fraction form
    353,291.87/529,925.45 = 100,573.76/x
  3. Step 3: Cross multiply
    353,291.87x = 529,925.45 × 100,573.76
  4. Step 4: Simplify right side
    353,291.87x = 53,296,594,523.32
  5. Step 5: Solve for x
    x = 53,296,594,523.32/353,291.87
  6. Step 6: Final answer
    x = 150,857.12

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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.