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Finding the Fourth Proportional to 136,666.60, 204,999.90 and 134,823.40

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Solution

The fourth proportional to 136,666.60, 204,999.90 and 134,823.40 is: 202,235.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,666.60 : 204,999.90 = 134,823.40 : x
  2. Step 2: Convert to fraction form
    136,666.60/204,999.90 = 134,823.40/x
  3. Step 3: Cross multiply
    136,666.60x = 204,999.90 × 134,823.40
  4. Step 4: Simplify right side
    136,666.60x = 27,638,783,517.66
  5. Step 5: Solve for x
    x = 27,638,783,517.66/136,666.60
  6. Step 6: Final answer
    x = 202,235.10

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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.