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Finding the Fourth Proportional to 117,368.67, 161,953.90 and 69,612.69

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Solution

The fourth proportional to 117,368.67, 161,953.90 and 69,612.69 is: 96,056.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,368.67 : 161,953.90 = 69,612.69 : x
  2. Step 2: Convert to fraction form
    117,368.67/161,953.90 = 69,612.69/x
  3. Step 3: Cross multiply
    117,368.67x = 161,953.90 × 69,612.69
  4. Step 4: Simplify right side
    117,368.67x = 11,274,046,634.99
  5. Step 5: Solve for x
    x = 11,274,046,634.99/117,368.67
  6. Step 6: Final answer
    x = 96,056.70

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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.