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Finding the Fourth Proportional to 117,064.57, 161,549.11 and 63,349.59

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Solution

The fourth proportional to 117,064.57, 161,549.11 and 63,349.59 is: 87,422.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,064.57 : 161,549.11 = 63,349.59 : x
  2. Step 2: Convert to fraction form
    117,064.57/161,549.11 = 63,349.59/x
  3. Step 3: Cross multiply
    117,064.57x = 161,549.11 × 63,349.59
  4. Step 4: Simplify right side
    117,064.57x = 10,234,069,119.18
  5. Step 5: Solve for x
    x = 10,234,069,119.18/117,064.57
  6. Step 6: Final answer
    x = 87,422.43

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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.