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Finding the Fourth Proportional to 147,693.60, 221,540.40 and 117,626.40

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Solution

The fourth proportional to 147,693.60, 221,540.40 and 117,626.40 is: 176,439.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,693.60 : 221,540.40 = 117,626.40 : x
  2. Step 2: Convert to fraction form
    147,693.60/221,540.40 = 117,626.40/x
  3. Step 3: Cross multiply
    147,693.60x = 221,540.40 × 117,626.40
  4. Step 4: Simplify right side
    147,693.60x = 26,058,999,706.56
  5. Step 5: Solve for x
    x = 26,058,999,706.56/147,693.60
  6. Step 6: Final answer
    x = 176,439.60

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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.