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Finding the Fourth Proportional to 156,618.48, 216,133.76 and 92,969.04

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Solution

The fourth proportional to 156,618.48, 216,133.76 and 92,969.04 is: 128,297.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,618.48 : 216,133.76 = 92,969.04 : x
  2. Step 2: Convert to fraction form
    156,618.48/216,133.76 = 92,969.04/x
  3. Step 3: Cross multiply
    156,618.48x = 216,133.76 × 92,969.04
  4. Step 4: Simplify right side
    156,618.48x = 20,093,748,178.79
  5. Step 5: Solve for x
    x = 20,093,748,178.79/156,618.48
  6. Step 6: Final answer
    x = 128,297.43

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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.