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Finding the Fourth Proportional to 320,449.43, 480,526.13 and 117,994.68

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Solution

The fourth proportional to 320,449.43, 480,526.13 and 117,994.68 is: 176,937.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,449.43 : 480,526.13 = 117,994.68 : x
  2. Step 2: Convert to fraction form
    320,449.43/480,526.13 = 117,994.68/x
  3. Step 3: Cross multiply
    320,449.43x = 480,526.13 × 117,994.68
  4. Step 4: Simplify right side
    320,449.43x = 56,699,529,037.95
  5. Step 5: Solve for x
    x = 56,699,529,037.95/320,449.43
  6. Step 6: Final answer
    x = 176,937.53

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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.