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Finding the Fourth Proportional to 133,093.90, 183,661.82 and 72,652.50

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Solution

The fourth proportional to 133,093.90, 183,661.82 and 72,652.50 is: 100,256.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,093.90 : 183,661.82 = 72,652.50 : x
  2. Step 2: Convert to fraction form
    133,093.90/183,661.82 = 72,652.50/x
  3. Step 3: Cross multiply
    133,093.90x = 183,661.82 × 72,652.50
  4. Step 4: Simplify right side
    133,093.90x = 13,343,490,377.55
  5. Step 5: Solve for x
    x = 13,343,490,377.55/133,093.90
  6. Step 6: Final answer
    x = 100,256.21

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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.