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Finding the Fourth Proportional to 117,152.31, 161,669.94 and 63,437.48

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Solution

The fourth proportional to 117,152.31, 161,669.94 and 63,437.48 is: 87,543.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,152.31 : 161,669.94 = 63,437.48 : x
  2. Step 2: Convert to fraction form
    117,152.31/161,669.94 = 63,437.48/x
  3. Step 3: Cross multiply
    117,152.31x = 161,669.94 × 63,437.48
  4. Step 4: Simplify right side
    117,152.31x = 10,255,932,777.00
  5. Step 5: Solve for x
    x = 10,255,932,777.00/117,152.31
  6. Step 6: Final answer
    x = 87,543.58

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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.