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Finding the Fourth Proportional to 118,411, 177,704.18 and 56,081.68

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Solution

The fourth proportional to 118,411, 177,704.18 and 56,081.68 is: 84,164.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,411 : 177,704.18 = 56,081.68 : x
  2. Step 2: Convert to fraction form
    118,411/177,704.18 = 56,081.68/x
  3. Step 3: Cross multiply
    118,411x = 177,704.18 × 56,081.68
  4. Step 4: Simplify right side
    118,411x = 9,965,948,957.42
  5. Step 5: Solve for x
    x = 9,965,948,957.42/118,411
  6. Step 6: Final answer
    x = 84,164.05

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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.