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Finding the Fourth Proportional to 112,156, 168,150.54 and 52,957.96

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Solution

The fourth proportional to 112,156, 168,150.54 and 52,957.96 is: 79,397.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,156 : 168,150.54 = 52,957.96 : x
  2. Step 2: Convert to fraction form
    112,156/168,150.54 = 52,957.96/x
  3. Step 3: Cross multiply
    112,156x = 168,150.54 × 52,957.96
  4. Step 4: Simplify right side
    112,156x = 8,904,909,571.30
  5. Step 5: Solve for x
    x = 8,904,909,571.30/112,156
  6. Step 6: Final answer
    x = 79,397.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.