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Finding the Fourth Proportional to 116,892.40, 175,338.60 and 72,655.60

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Solution

The fourth proportional to 116,892.40, 175,338.60 and 72,655.60 is: 108,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,892.40 : 175,338.60 = 72,655.60 : x
  2. Step 2: Convert to fraction form
    116,892.40/175,338.60 = 72,655.60/x
  3. Step 3: Cross multiply
    116,892.40x = 175,338.60 × 72,655.60
  4. Step 4: Simplify right side
    116,892.40x = 12,739,331,186.16
  5. Step 5: Solve for x
    x = 12,739,331,186.16/116,892.40
  6. Step 6: Final answer
    x = 108,983.40

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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.