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Finding the Fourth Proportional to 239,820.60, 330,953.58 and 132,388.68

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Solution

The fourth proportional to 239,820.60, 330,953.58 and 132,388.68 is: 182,697.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,820.60 : 330,953.58 = 132,388.68 : x
  2. Step 2: Convert to fraction form
    239,820.60/330,953.58 = 132,388.68/x
  3. Step 3: Cross multiply
    239,820.60x = 330,953.58 × 132,388.68
  4. Step 4: Simplify right side
    239,820.60x = 43,814,507,597.47
  5. Step 5: Solve for x
    x = 43,814,507,597.47/239,820.60
  6. Step 6: Final answer
    x = 182,697.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.