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Finding the Fourth Proportional to 82,404.30, 123,606.45 and 82,404.30

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Solution

The fourth proportional to 82,404.30, 123,606.45 and 82,404.30 is: 123,606.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,404.30 : 123,606.45 = 82,404.30 : x
  2. Step 2: Convert to fraction form
    82,404.30/123,606.45 = 82,404.30/x
  3. Step 3: Cross multiply
    82,404.30x = 123,606.45 × 82,404.30
  4. Step 4: Simplify right side
    82,404.30x = 10,185,702,987.74
  5. Step 5: Solve for x
    x = 10,185,702,987.74/82,404.30
  6. Step 6: Final answer
    x = 123,606.45

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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.