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Finding the Fourth Proportional to 112,155, 168,149.04 and 52,956.96

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Solution

The fourth proportional to 112,155, 168,149.04 and 52,956.96 is: 79,396.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,155 : 168,149.04 = 52,956.96 : x
  2. Step 2: Convert to fraction form
    112,155/168,149.04 = 52,956.96/x
  3. Step 3: Cross multiply
    112,155x = 168,149.04 × 52,956.96
  4. Step 4: Simplify right side
    112,155x = 8,904,661,985.32
  5. Step 5: Solve for x
    x = 8,904,661,985.32/112,155
  6. Step 6: Final answer
    x = 79,396.03

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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.