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Finding the Fourth Proportional to 119,246.40, 178,869.60 and 117,496.80

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Solution

The fourth proportional to 119,246.40, 178,869.60 and 117,496.80 is: 176,245.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,246.40 : 178,869.60 = 117,496.80 : x
  2. Step 2: Convert to fraction form
    119,246.40/178,869.60 = 117,496.80/x
  3. Step 3: Cross multiply
    119,246.40x = 178,869.60 × 117,496.80
  4. Step 4: Simplify right side
    119,246.40x = 21,016,605,617.28
  5. Step 5: Solve for x
    x = 21,016,605,617.28/119,246.40
  6. Step 6: Final answer
    x = 176,245.20

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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.