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Finding the Fourth Proportional to 116,144.40, 174,346.20 and 108,530.40

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Solution

The fourth proportional to 116,144.40, 174,346.20 and 108,530.40 is: 162,916.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,144.40 : 174,346.20 = 108,530.40 : x
  2. Step 2: Convert to fraction form
    116,144.40/174,346.20 = 108,530.40/x
  3. Step 3: Cross multiply
    116,144.40x = 174,346.20 × 108,530.40
  4. Step 4: Simplify right side
    116,144.40x = 18,921,862,824.48
  5. Step 5: Solve for x
    x = 18,921,862,824.48/116,144.40
  6. Step 6: Final answer
    x = 162,916.70

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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.