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Finding the Fourth Proportional to 340,597.86, 510,892.68 and 103,941.21

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Solution

The fourth proportional to 340,597.86, 510,892.68 and 103,941.21 is: 155,910.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,597.86 : 510,892.68 = 103,941.21 : x
  2. Step 2: Convert to fraction form
    340,597.86/510,892.68 = 103,941.21/x
  3. Step 3: Cross multiply
    340,597.86x = 510,892.68 × 103,941.21
  4. Step 4: Simplify right side
    340,597.86x = 53,102,803,339.34
  5. Step 5: Solve for x
    x = 53,102,803,339.34/340,597.86
  6. Step 6: Final answer
    x = 155,910.56

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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.