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Finding the Fourth Proportional to 161,238.78, 241,887.25 and 66,417.22

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Solution

The fourth proportional to 161,238.78, 241,887.25 and 66,417.22 is: 99,637.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,238.78 : 241,887.25 = 66,417.22 : x
  2. Step 2: Convert to fraction form
    161,238.78/241,887.25 = 66,417.22/x
  3. Step 3: Cross multiply
    161,238.78x = 241,887.25 × 66,417.22
  4. Step 4: Simplify right side
    161,238.78x = 16,065,477,629.81
  5. Step 5: Solve for x
    x = 16,065,477,629.81/161,238.78
  6. Step 6: Final answer
    x = 99,637.80

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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.