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Finding the Fourth Proportional to 109,472.40, 164,208.60 and 105,098.40

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Solution

The fourth proportional to 109,472.40, 164,208.60 and 105,098.40 is: 157,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,472.40 : 164,208.60 = 105,098.40 : x
  2. Step 2: Convert to fraction form
    109,472.40/164,208.60 = 105,098.40/x
  3. Step 3: Cross multiply
    109,472.40x = 164,208.60 × 105,098.40
  4. Step 4: Simplify right side
    109,472.40x = 17,258,061,126.24
  5. Step 5: Solve for x
    x = 17,258,061,126.24/109,472.40
  6. Step 6: Final answer
    x = 157,647.60

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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.