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Finding the Fourth Proportional to 116,840.92, 175,209.54 and 72,465.88

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Solution

The fourth proportional to 116,840.92, 175,209.54 and 72,465.88 is: 108,666.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,840.92 : 175,209.54 = 72,465.88 : x
  2. Step 2: Convert to fraction form
    116,840.92/175,209.54 = 72,465.88/x
  3. Step 3: Cross multiply
    116,840.92x = 175,209.54 × 72,465.88
  4. Step 4: Simplify right side
    116,840.92x = 12,696,713,500.50
  5. Step 5: Solve for x
    x = 12,696,713,500.50/116,840.92
  6. Step 6: Final answer
    x = 108,666.67

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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.