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Finding the Fourth Proportional to 116,699.60, 174,984.60 and 50,128.40

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Solution

The fourth proportional to 116,699.60, 174,984.60 and 50,128.40 is: 75,164.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,699.60 : 174,984.60 = 50,128.40 : x
  2. Step 2: Convert to fraction form
    116,699.60/174,984.60 = 50,128.40/x
  3. Step 3: Cross multiply
    116,699.60x = 174,984.60 × 50,128.40
  4. Step 4: Simplify right side
    116,699.60x = 8,771,698,022.64
  5. Step 5: Solve for x
    x = 8,771,698,022.64/116,699.60
  6. Step 6: Final answer
    x = 75,164.77

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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.