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Finding the Fourth Proportional to 118,808.05, 178,199.52 and 62,625.64

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Solution

The fourth proportional to 118,808.05, 178,199.52 and 62,625.64 is: 93,931.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,808.05 : 178,199.52 = 62,625.64 : x
  2. Step 2: Convert to fraction form
    118,808.05/178,199.52 = 62,625.64/x
  3. Step 3: Cross multiply
    118,808.05x = 178,199.52 × 62,625.64
  4. Step 4: Simplify right side
    118,808.05x = 11,159,858,987.69
  5. Step 5: Solve for x
    x = 11,159,858,987.69/118,808.05
  6. Step 6: Final answer
    x = 93,931.84

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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.