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Finding the Fourth Proportional to 133,881.06, 200,821.86 and 40,386.90

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Solution

The fourth proportional to 133,881.06, 200,821.86 and 40,386.90 is: 60,580.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,881.06 : 200,821.86 = 40,386.90 : x
  2. Step 2: Convert to fraction form
    133,881.06/200,821.86 = 40,386.90/x
  3. Step 3: Cross multiply
    133,881.06x = 200,821.86 × 40,386.90
  4. Step 4: Simplify right side
    133,881.06x = 8,110,572,377.63
  5. Step 5: Solve for x
    x = 8,110,572,377.63/133,881.06
  6. Step 6: Final answer
    x = 60,580.43

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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.