Home / 330,851.13-496,276.69-81,533.13

Finding the Fourth Proportional to 330,851.13, 496,276.69 and 81,533.13

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Solution

The fourth proportional to 330,851.13, 496,276.69 and 81,533.13 is: 122,299.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,851.13 : 496,276.69 = 81,533.13 : x
  2. Step 2: Convert to fraction form
    330,851.13/496,276.69 = 81,533.13/x
  3. Step 3: Cross multiply
    330,851.13x = 496,276.69 × 81,533.13
  4. Step 4: Simplify right side
    330,851.13x = 40,462,991,881.74
  5. Step 5: Solve for x
    x = 40,462,991,881.74/330,851.13
  6. Step 6: Final answer
    x = 122,299.69

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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.