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Finding the Fourth Proportional to 118,926.58, 178,389.87 and 35,820.58

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Solution

The fourth proportional to 118,926.58, 178,389.87 and 35,820.58 is: 53,730.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,926.58 : 178,389.87 = 35,820.58 : x
  2. Step 2: Convert to fraction form
    118,926.58/178,389.87 = 35,820.58/x
  3. Step 3: Cross multiply
    118,926.58x = 178,389.87 × 35,820.58
  4. Step 4: Simplify right side
    118,926.58x = 6,390,028,609.52
  5. Step 5: Solve for x
    x = 6,390,028,609.52/118,926.58
  6. Step 6: Final answer
    x = 53,730.87

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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.