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Finding the Fourth Proportional to 117,175.70, 175,658.30 and 42,278.24

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Solution

The fourth proportional to 117,175.70, 175,658.30 and 42,278.24 is: 63,379.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,175.70 : 175,658.30 = 42,278.24 : x
  2. Step 2: Convert to fraction form
    117,175.70/175,658.30 = 42,278.24/x
  3. Step 3: Cross multiply
    117,175.70x = 175,658.30 × 42,278.24
  4. Step 4: Simplify right side
    117,175.70x = 7,426,523,765.39
  5. Step 5: Solve for x
    x = 7,426,523,765.39/117,175.70
  6. Step 6: Final answer
    x = 63,379.38

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1.5x scale

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.