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Finding the Fourth Proportional to 104,110.40, 156,050.40 and 57,396.80

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Solution

The fourth proportional to 104,110.40, 156,050.40 and 57,396.80 is: 86,031.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,110.40 : 156,050.40 = 57,396.80 : x
  2. Step 2: Convert to fraction form
    104,110.40/156,050.40 = 57,396.80/x
  3. Step 3: Cross multiply
    104,110.40x = 156,050.40 × 57,396.80
  4. Step 4: Simplify right side
    104,110.40x = 8,956,793,598.72
  5. Step 5: Solve for x
    x = 8,956,793,598.72/104,110.40
  6. Step 6: Final answer
    x = 86,031.69

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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.