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Finding the Fourth Proportional to 161,062.88, 241,477.60 and 81,150.08

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Solution

The fourth proportional to 161,062.88, 241,477.60 and 81,150.08 is: 121,666.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,062.88 : 241,477.60 = 81,150.08 : x
  2. Step 2: Convert to fraction form
    161,062.88/241,477.60 = 81,150.08/x
  3. Step 3: Cross multiply
    161,062.88x = 241,477.60 × 81,150.08
  4. Step 4: Simplify right side
    161,062.88x = 19,595,926,558.21
  5. Step 5: Solve for x
    x = 19,595,926,558.21/161,062.88
  6. Step 6: Final answer
    x = 121,666.31

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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.