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Finding the Fourth Proportional to 117,293.61, 161,865.53 and 63,578.85

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Solution

The fourth proportional to 117,293.61, 161,865.53 and 63,578.85 is: 87,739.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,293.61 : 161,865.53 = 63,578.85 : x
  2. Step 2: Convert to fraction form
    117,293.61/161,865.53 = 63,578.85/x
  3. Step 3: Cross multiply
    117,293.61x = 161,865.53 × 63,578.85
  4. Step 4: Simplify right side
    117,293.61x = 10,291,224,252.04
  5. Step 5: Solve for x
    x = 10,291,224,252.04/117,293.61
  6. Step 6: Final answer
    x = 87,739.00

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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.