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Finding the Fourth Proportional to 117,187.58, 161,718.80 and 63,472.59

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Solution

The fourth proportional to 117,187.58, 161,718.80 and 63,472.59 is: 87,592.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,187.58 : 161,718.80 = 63,472.59 : x
  2. Step 2: Convert to fraction form
    117,187.58/161,718.80 = 63,472.59/x
  3. Step 3: Cross multiply
    117,187.58x = 161,718.80 × 63,472.59
  4. Step 4: Simplify right side
    117,187.58x = 10,264,710,770.33
  5. Step 5: Solve for x
    x = 10,264,710,770.33/117,187.58
  6. Step 6: Final answer
    x = 87,592.14

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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.