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Finding the Fourth Proportional to 117,062.75, 161,545.95 and 63,347.69

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Solution

The fourth proportional to 117,062.75, 161,545.95 and 63,347.69 is: 87,419.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,062.75 : 161,545.95 = 63,347.69 : x
  2. Step 2: Convert to fraction form
    117,062.75/161,545.95 = 63,347.69/x
  3. Step 3: Cross multiply
    117,062.75x = 161,545.95 × 63,347.69
  4. Step 4: Simplify right side
    117,062.75x = 10,233,563,165.22
  5. Step 5: Solve for x
    x = 10,233,563,165.22/117,062.75
  6. Step 6: Final answer
    x = 87,419.46

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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.