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Finding the Fourth Proportional to 97,409.40, 146,103.30 and 79,848.60

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Solution

The fourth proportional to 97,409.40, 146,103.30 and 79,848.60 is: 119,764.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,409.40 : 146,103.30 = 79,848.60 : x
  2. Step 2: Convert to fraction form
    97,409.40/146,103.30 = 79,848.60/x
  3. Step 3: Cross multiply
    97,409.40x = 146,103.30 × 79,848.60
  4. Step 4: Simplify right side
    97,409.40x = 11,666,143,960.38
  5. Step 5: Solve for x
    x = 11,666,143,960.38/97,409.40
  6. Step 6: Final answer
    x = 119,764.05

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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.