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Finding the Fourth Proportional to 116,128.40, 174,322.20 and 108,514.40

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Solution

The fourth proportional to 116,128.40, 174,322.20 and 108,514.40 is: 162,892.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,128.40 : 174,322.20 = 108,514.40 : x
  2. Step 2: Convert to fraction form
    116,128.40/174,322.20 = 108,514.40/x
  3. Step 3: Cross multiply
    116,128.40x = 174,322.20 × 108,514.40
  4. Step 4: Simplify right side
    116,128.40x = 18,916,468,939.68
  5. Step 5: Solve for x
    x = 18,916,468,939.68/116,128.40
  6. Step 6: Final answer
    x = 162,892.70

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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.