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Finding the Fourth Proportional to 76,421.80, 114,632.70 and 32,033.80

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Solution

The fourth proportional to 76,421.80, 114,632.70 and 32,033.80 is: 48,050.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,421.80 : 114,632.70 = 32,033.80 : x
  2. Step 2: Convert to fraction form
    76,421.80/114,632.70 = 32,033.80/x
  3. Step 3: Cross multiply
    76,421.80x = 114,632.70 × 32,033.80
  4. Step 4: Simplify right side
    76,421.80x = 3,672,120,985.26
  5. Step 5: Solve for x
    x = 3,672,120,985.26/76,421.80
  6. Step 6: Final answer
    x = 48,050.70

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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.