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Finding the Fourth Proportional to 117,224.61, 161,770.13 and 63,509.63

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Solution

The fourth proportional to 117,224.61, 161,770.13 and 63,509.63 is: 87,643.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,224.61 : 161,770.13 = 63,509.63 : x
  2. Step 2: Convert to fraction form
    117,224.61/161,770.13 = 63,509.63/x
  3. Step 3: Cross multiply
    117,224.61x = 161,770.13 × 63,509.63
  4. Step 4: Simplify right side
    117,224.61x = 10,273,961,578.05
  5. Step 5: Solve for x
    x = 10,273,961,578.05/117,224.61
  6. Step 6: Final answer
    x = 87,643.38

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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.