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Finding the Fourth Proportional to 105,748.40, 158,622.60 and 35,620.40

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Solution

The fourth proportional to 105,748.40, 158,622.60 and 35,620.40 is: 53,430.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,748.40 : 158,622.60 = 35,620.40 : x
  2. Step 2: Convert to fraction form
    105,748.40/158,622.60 = 35,620.40/x
  3. Step 3: Cross multiply
    105,748.40x = 158,622.60 × 35,620.40
  4. Step 4: Simplify right side
    105,748.40x = 5,650,200,461.04
  5. Step 5: Solve for x
    x = 5,650,200,461.04/105,748.40
  6. Step 6: Final answer
    x = 53,430.60

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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.