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Finding the Fourth Proportional to 117,336.40, 176,004.60 and 113,189.20

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Solution

The fourth proportional to 117,336.40, 176,004.60 and 113,189.20 is: 169,783.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,336.40 : 176,004.60 = 113,189.20 : x
  2. Step 2: Convert to fraction form
    117,336.40/176,004.60 = 113,189.20/x
  3. Step 3: Cross multiply
    117,336.40x = 176,004.60 × 113,189.20
  4. Step 4: Simplify right side
    117,336.40x = 19,921,819,870.32
  5. Step 5: Solve for x
    x = 19,921,819,870.32/117,336.40
  6. Step 6: Final answer
    x = 169,783.80

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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.