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Finding the Fourth Proportional to 114,649.75, 158,231.64 and 64,348.75

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Solution

The fourth proportional to 114,649.75, 158,231.64 and 64,348.75 is: 88,809.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,649.75 : 158,231.64 = 64,348.75 : x
  2. Step 2: Convert to fraction form
    114,649.75/158,231.64 = 64,348.75/x
  3. Step 3: Cross multiply
    114,649.75x = 158,231.64 × 64,348.75
  4. Step 4: Simplify right side
    114,649.75x = 10,182,008,244.45
  5. Step 5: Solve for x
    x = 10,182,008,244.45/114,649.75
  6. Step 6: Final answer
    x = 88,809.69

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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.