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Finding the Fourth Proportional to 101,808.42, 152,556.76 and 42,611.86

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Solution

The fourth proportional to 101,808.42, 152,556.76 and 42,611.86 is: 63,852.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,808.42 : 152,556.76 = 42,611.86 : x
  2. Step 2: Convert to fraction form
    101,808.42/152,556.76 = 42,611.86/x
  3. Step 3: Cross multiply
    101,808.42x = 152,556.76 × 42,611.86
  4. Step 4: Simplify right side
    101,808.42x = 6,500,727,299.17
  5. Step 5: Solve for x
    x = 6,500,727,299.17/101,808.42
  6. Step 6: Final answer
    x = 63,852.55

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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.