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Finding the Fourth Proportional to 136,767.63, 205,241.19 and 48,018.86

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Solution

The fourth proportional to 136,767.63, 205,241.19 and 48,018.86 is: 72,059.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,767.63 : 205,241.19 = 48,018.86 : x
  2. Step 2: Convert to fraction form
    136,767.63/205,241.19 = 48,018.86/x
  3. Step 3: Cross multiply
    136,767.63x = 205,241.19 × 48,018.86
  4. Step 4: Simplify right side
    136,767.63x = 9,855,447,968.84
  5. Step 5: Solve for x
    x = 9,855,447,968.84/136,767.63
  6. Step 6: Final answer
    x = 72,059.80

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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.