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Finding the Fourth Proportional to 112,293.80, 168,051.90 and 102,962.60

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Solution

The fourth proportional to 112,293.80, 168,051.90 and 102,962.60 is: 154,087.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,293.80 : 168,051.90 = 102,962.60 : x
  2. Step 2: Convert to fraction form
    112,293.80/168,051.90 = 102,962.60/x
  3. Step 3: Cross multiply
    112,293.80x = 168,051.90 × 102,962.60
  4. Step 4: Simplify right side
    112,293.80x = 17,303,060,558.94
  5. Step 5: Solve for x
    x = 17,303,060,558.94/112,293.80
  6. Step 6: Final answer
    x = 154,087.41

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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.