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Finding the Fourth Proportional to 111,613.60, 167,614.80 and 108,114.40

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Solution

The fourth proportional to 111,613.60, 167,614.80 and 108,114.40 is: 162,359.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,613.60 : 167,614.80 = 108,114.40 : x
  2. Step 2: Convert to fraction form
    111,613.60/167,614.80 = 108,114.40/x
  3. Step 3: Cross multiply
    111,613.60x = 167,614.80 × 108,114.40
  4. Step 4: Simplify right side
    111,613.60x = 18,121,573,533.12
  5. Step 5: Solve for x
    x = 18,121,573,533.12/111,613.60
  6. Step 6: Final answer
    x = 162,359.91

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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.