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Finding the Fourth Proportional to 116,493.60, 174,351.60 and 81,501.60

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Solution

The fourth proportional to 116,493.60, 174,351.60 and 81,501.60 is: 121,980.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,493.60 : 174,351.60 = 81,501.60 : x
  2. Step 2: Convert to fraction form
    116,493.60/174,351.60 = 81,501.60/x
  3. Step 3: Cross multiply
    116,493.60x = 174,351.60 × 81,501.60
  4. Step 4: Simplify right side
    116,493.60x = 14,209,934,362.56
  5. Step 5: Solve for x
    x = 14,209,934,362.56/116,493.60
  6. Step 6: Final answer
    x = 121,980.39

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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.