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Finding the Fourth Proportional to 82,215.60, 114,839.40 and 82,215.60

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Solution

The fourth proportional to 82,215.60, 114,839.40 and 82,215.60 is: 114,839.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,215.60 : 114,839.40 = 82,215.60 : x
  2. Step 2: Convert to fraction form
    82,215.60/114,839.40 = 82,215.60/x
  3. Step 3: Cross multiply
    82,215.60x = 114,839.40 × 82,215.60
  4. Step 4: Simplify right side
    82,215.60x = 9,441,590,174.64
  5. Step 5: Solve for x
    x = 9,441,590,174.64/82,215.60
  6. Step 6: Final answer
    x = 114,839.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.