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Finding the Fourth Proportional to 103,277.01, 154,614.60 and 76,740.60

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Solution

The fourth proportional to 103,277.01, 154,614.60 and 76,740.60 is: 114,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,277.01 : 154,614.60 = 76,740.60 : x
  2. Step 2: Convert to fraction form
    103,277.01/154,614.60 = 76,740.60/x
  3. Step 3: Cross multiply
    103,277.01x = 154,614.60 × 76,740.60
  4. Step 4: Simplify right side
    103,277.01x = 11,865,217,172.76
  5. Step 5: Solve for x
    x = 11,865,217,172.76/103,277.01
  6. Step 6: Final answer
    x = 114,887.30

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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.