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Finding the Fourth Proportional to 117,344.61, 161,910.63 and 69,613.47

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Solution

The fourth proportional to 117,344.61, 161,910.63 and 69,613.47 is: 96,051.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,344.61 : 161,910.63 = 69,613.47 : x
  2. Step 2: Convert to fraction form
    117,344.61/161,910.63 = 69,613.47/x
  3. Step 3: Cross multiply
    117,344.61x = 161,910.63 × 69,613.47
  4. Step 4: Simplify right side
    117,344.61x = 11,271,160,784.19
  5. Step 5: Solve for x
    x = 11,271,160,784.19/117,344.61
  6. Step 6: Final answer
    x = 96,051.80

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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.