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Finding the Fourth Proportional to 156,987.88, 216,706.02 and 96,583.24

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Solution

The fourth proportional to 156,987.88, 216,706.02 and 96,583.24 is: 133,323.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,987.88 : 216,706.02 = 96,583.24 : x
  2. Step 2: Convert to fraction form
    156,987.88/216,706.02 = 96,583.24/x
  3. Step 3: Cross multiply
    156,987.88x = 216,706.02 × 96,583.24
  4. Step 4: Simplify right side
    156,987.88x = 20,930,169,539.10
  5. Step 5: Solve for x
    x = 20,930,169,539.10/156,987.88
  6. Step 6: Final answer
    x = 133,323.47

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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.