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Finding the Fourth Proportional to 364,858.31, 547,536.63 and 128,201.01

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Solution

The fourth proportional to 364,858.31, 547,536.63 and 128,201.01 is: 192,389.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,858.31 : 547,536.63 = 128,201.01 : x
  2. Step 2: Convert to fraction form
    364,858.31/547,536.63 = 128,201.01/x
  3. Step 3: Cross multiply
    364,858.31x = 547,536.63 × 128,201.01
  4. Step 4: Simplify right side
    364,858.31x = 70,194,748,978.00
  5. Step 5: Solve for x
    x = 70,194,748,978.00/364,858.31
  6. Step 6: Final answer
    x = 192,389.07

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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.