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Finding the Fourth Proportional to 113,425.70, 170,203.35 and 43,355.30

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Solution

The fourth proportional to 113,425.70, 170,203.35 and 43,355.30 is: 65,057.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,425.70 : 170,203.35 = 43,355.30 : x
  2. Step 2: Convert to fraction form
    113,425.70/170,203.35 = 43,355.30/x
  3. Step 3: Cross multiply
    113,425.70x = 170,203.35 × 43,355.30
  4. Step 4: Simplify right side
    113,425.70x = 7,379,217,300.26
  5. Step 5: Solve for x
    x = 7,379,217,300.26/113,425.70
  6. Step 6: Final answer
    x = 65,057.72

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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.