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Finding the Fourth Proportional to 116,490.80, 174,505.80 and 108,196.40

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Solution

The fourth proportional to 116,490.80, 174,505.80 and 108,196.40 is: 162,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,490.80 : 174,505.80 = 108,196.40 : x
  2. Step 2: Convert to fraction form
    116,490.80/174,505.80 = 108,196.40/x
  3. Step 3: Cross multiply
    116,490.80x = 174,505.80 × 108,196.40
  4. Step 4: Simplify right side
    116,490.80x = 18,880,899,339.12
  5. Step 5: Solve for x
    x = 18,880,899,339.12/116,490.80
  6. Step 6: Final answer
    x = 162,080.60

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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.