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Finding the Fourth Proportional to 109,373.40, 164,060.10 and 39,243.60

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Solution

The fourth proportional to 109,373.40, 164,060.10 and 39,243.60 is: 58,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,373.40 : 164,060.10 = 39,243.60 : x
  2. Step 2: Convert to fraction form
    109,373.40/164,060.10 = 39,243.60/x
  3. Step 3: Cross multiply
    109,373.40x = 164,060.10 × 39,243.60
  4. Step 4: Simplify right side
    109,373.40x = 6,438,308,940.36
  5. Step 5: Solve for x
    x = 6,438,308,940.36/109,373.40
  6. Step 6: Final answer
    x = 58,865.40

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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.