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Finding the Fourth Proportional to 176,740.40, 264,916.20 and 76,883.60

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Solution

The fourth proportional to 176,740.40, 264,916.20 and 76,883.60 is: 115,240.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,740.40 : 264,916.20 = 76,883.60 : x
  2. Step 2: Convert to fraction form
    176,740.40/264,916.20 = 76,883.60/x
  3. Step 3: Cross multiply
    176,740.40x = 264,916.20 × 76,883.60
  4. Step 4: Simplify right side
    176,740.40x = 20,367,711,154.32
  5. Step 5: Solve for x
    x = 20,367,711,154.32/176,740.40
  6. Step 6: Final answer
    x = 115,240.83

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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.