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Finding the Fourth Proportional to 76,334.40, 114,501.60 and 52,714.80

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Solution

The fourth proportional to 76,334.40, 114,501.60 and 52,714.80 is: 79,072.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,334.40 : 114,501.60 = 52,714.80 : x
  2. Step 2: Convert to fraction form
    76,334.40/114,501.60 = 52,714.80/x
  3. Step 3: Cross multiply
    76,334.40x = 114,501.60 × 52,714.80
  4. Step 4: Simplify right side
    76,334.40x = 6,035,928,943.68
  5. Step 5: Solve for x
    x = 6,035,928,943.68/76,334.40
  6. Step 6: Final answer
    x = 79,072.20

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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.