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Finding the Fourth Proportional to 156,551.49, 216,041.70 and 84,932.03

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Solution

The fourth proportional to 156,551.49, 216,041.70 and 84,932.03 is: 117,206.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,551.49 : 216,041.70 = 84,932.03 : x
  2. Step 2: Convert to fraction form
    156,551.49/216,041.70 = 84,932.03/x
  3. Step 3: Cross multiply
    156,551.49x = 216,041.70 × 84,932.03
  4. Step 4: Simplify right side
    156,551.49x = 18,348,859,065.44
  5. Step 5: Solve for x
    x = 18,348,859,065.44/156,551.49
  6. Step 6: Final answer
    x = 117,206.54

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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.