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Finding the Fourth Proportional to 105,622.40, 158,433.60 and 43,337.60

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Solution

The fourth proportional to 105,622.40, 158,433.60 and 43,337.60 is: 65,006.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,622.40 : 158,433.60 = 43,337.60 : x
  2. Step 2: Convert to fraction form
    105,622.40/158,433.60 = 43,337.60/x
  3. Step 3: Cross multiply
    105,622.40x = 158,433.60 × 43,337.60
  4. Step 4: Simplify right side
    105,622.40x = 6,866,131,983.36
  5. Step 5: Solve for x
    x = 6,866,131,983.36/105,622.40
  6. Step 6: Final answer
    x = 65,006.40

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1.5x scale

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.