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Finding the Fourth Proportional to 102,999.96, 154,529.10 and 60,917.40

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Solution

The fourth proportional to 102,999.96, 154,529.10 and 60,917.40 is: 91,393.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,999.96 : 154,529.10 = 60,917.40 : x
  2. Step 2: Convert to fraction form
    102,999.96/154,529.10 = 60,917.40/x
  3. Step 3: Cross multiply
    102,999.96x = 154,529.10 × 60,917.40
  4. Step 4: Simplify right side
    102,999.96x = 9,413,510,996.34
  5. Step 5: Solve for x
    x = 9,413,510,996.34/102,999.96
  6. Step 6: Final answer
    x = 91,393.35

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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.