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Finding the Fourth Proportional to 116,874.60, 175,311.90 and 57,719.40

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Solution

The fourth proportional to 116,874.60, 175,311.90 and 57,719.40 is: 86,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,874.60 : 175,311.90 = 57,719.40 : x
  2. Step 2: Convert to fraction form
    116,874.60/175,311.90 = 57,719.40/x
  3. Step 3: Cross multiply
    116,874.60x = 175,311.90 × 57,719.40
  4. Step 4: Simplify right side
    116,874.60x = 10,118,897,680.86
  5. Step 5: Solve for x
    x = 10,118,897,680.86/116,874.60
  6. Step 6: Final answer
    x = 86,579.10

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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.