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Finding the Fourth Proportional to 117,065.94, 161,549.67 and 63,349.98

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Solution

The fourth proportional to 117,065.94, 161,549.67 and 63,349.98 is: 87,422.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,065.94 : 161,549.67 = 63,349.98 : x
  2. Step 2: Convert to fraction form
    117,065.94/161,549.67 = 63,349.98/x
  3. Step 3: Cross multiply
    117,065.94x = 161,549.67 × 63,349.98
  4. Step 4: Simplify right side
    117,065.94x = 10,234,168,363.51
  5. Step 5: Solve for x
    x = 10,234,168,363.51/117,065.94
  6. Step 6: Final answer
    x = 87,422.25

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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.