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Finding the Fourth Proportional to 125,817.68, 188,700.60 and 55,652.24

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Solution

The fourth proportional to 125,817.68, 188,700.60 and 55,652.24 is: 83,466.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,817.68 : 188,700.60 = 55,652.24 : x
  2. Step 2: Convert to fraction form
    125,817.68/188,700.60 = 55,652.24/x
  3. Step 3: Cross multiply
    125,817.68x = 188,700.60 × 55,652.24
  4. Step 4: Simplify right side
    125,817.68x = 10,501,611,079.34
  5. Step 5: Solve for x
    x = 10,501,611,079.34/125,817.68
  6. Step 6: Final answer
    x = 83,466.89

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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.