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Finding the Fourth Proportional to 76,203.65, 114,379.29 and 36,788.45

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Solution

The fourth proportional to 76,203.65, 114,379.29 and 36,788.45 is: 55,218.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,203.65 : 114,379.29 = 36,788.45 : x
  2. Step 2: Convert to fraction form
    76,203.65/114,379.29 = 36,788.45/x
  3. Step 3: Cross multiply
    76,203.65x = 114,379.29 × 36,788.45
  4. Step 4: Simplify right side
    76,203.65x = 4,207,836,219.30
  5. Step 5: Solve for x
    x = 4,207,836,219.30/76,203.65
  6. Step 6: Final answer
    x = 55,218.30

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1.5x scale

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.