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Finding the Fourth Proportional to 136,945.90, 205,402.65 and 37,099.90

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Solution

The fourth proportional to 136,945.90, 205,402.65 and 37,099.90 is: 55,645.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,945.90 : 205,402.65 = 37,099.90 : x
  2. Step 2: Convert to fraction form
    136,945.90/205,402.65 = 37,099.90/x
  3. Step 3: Cross multiply
    136,945.90x = 205,402.65 × 37,099.90
  4. Step 4: Simplify right side
    136,945.90x = 7,620,417,774.74
  5. Step 5: Solve for x
    x = 7,620,417,774.74/136,945.90
  6. Step 6: Final answer
    x = 55,645.46

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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.