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Finding the Fourth Proportional to 149,118.96, 205,716.36 and 88,655.30

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Solution

The fourth proportional to 149,118.96, 205,716.36 and 88,655.30 is: 122,304.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,118.96 : 205,716.36 = 88,655.30 : x
  2. Step 2: Convert to fraction form
    149,118.96/205,716.36 = 88,655.30/x
  3. Step 3: Cross multiply
    149,118.96x = 205,716.36 × 88,655.30
  4. Step 4: Simplify right side
    149,118.96x = 18,237,845,610.71
  5. Step 5: Solve for x
    x = 18,237,845,610.71/149,118.96
  6. Step 6: Final answer
    x = 122,304.00

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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.