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Finding the Fourth Proportional to 117,467.84, 162,105.70 and 63,752.84

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Solution

The fourth proportional to 117,467.84, 162,105.70 and 63,752.84 is: 87,978.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,467.84 : 162,105.70 = 63,752.84 : x
  2. Step 2: Convert to fraction form
    117,467.84/162,105.70 = 63,752.84/x
  3. Step 3: Cross multiply
    117,467.84x = 162,105.70 × 63,752.84
  4. Step 4: Simplify right side
    117,467.84x = 10,334,698,755.19
  5. Step 5: Solve for x
    x = 10,334,698,755.19/117,467.84
  6. Step 6: Final answer
    x = 87,978.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.