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Finding the Fourth Proportional to 117,575.35, 176,311.99 and 42,670.60

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Solution

The fourth proportional to 117,575.35, 176,311.99 and 42,670.60 is: 63,987.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,575.35 : 176,311.99 = 42,670.60 : x
  2. Step 2: Convert to fraction form
    117,575.35/176,311.99 = 42,670.60/x
  3. Step 3: Cross multiply
    117,575.35x = 176,311.99 × 42,670.60
  4. Step 4: Simplify right side
    117,575.35x = 7,523,338,400.49
  5. Step 5: Solve for x
    x = 7,523,338,400.49/117,575.35
  6. Step 6: Final answer
    x = 63,987.38

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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.