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Finding the Fourth Proportional to 149,055.01, 205,628.06 and 88,591.29

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Solution

The fourth proportional to 149,055.01, 205,628.06 and 88,591.29 is: 122,215.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,055.01 : 205,628.06 = 88,591.29 : x
  2. Step 2: Convert to fraction form
    149,055.01/205,628.06 = 88,591.29/x
  3. Step 3: Cross multiply
    149,055.01x = 205,628.06 × 88,591.29
  4. Step 4: Simplify right side
    149,055.01x = 18,216,855,095.60
  5. Step 5: Solve for x
    x = 18,216,855,095.60/149,055.01
  6. Step 6: Final answer
    x = 122,215.65

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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.