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Finding the Fourth Proportional to 111,620.40, 167,430.60 and 37,748.40

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Solution

The fourth proportional to 111,620.40, 167,430.60 and 37,748.40 is: 56,622.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,620.40 : 167,430.60 = 37,748.40 : x
  2. Step 2: Convert to fraction form
    111,620.40/167,430.60 = 37,748.40/x
  3. Step 3: Cross multiply
    111,620.40x = 167,430.60 × 37,748.40
  4. Step 4: Simplify right side
    111,620.40x = 6,320,237,261.04
  5. Step 5: Solve for x
    x = 6,320,237,261.04/111,620.40
  6. Step 6: Final answer
    x = 56,622.60

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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.