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Finding the Fourth Proportional to 82,107.78, 113,360.45 and 62,952.03

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Solution

The fourth proportional to 82,107.78, 113,360.45 and 62,952.03 is: 86,913.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,107.78 : 113,360.45 = 62,952.03 : x
  2. Step 2: Convert to fraction form
    82,107.78/113,360.45 = 62,952.03/x
  3. Step 3: Cross multiply
    82,107.78x = 113,360.45 × 62,952.03
  4. Step 4: Simplify right side
    82,107.78x = 7,136,270,134.45
  5. Step 5: Solve for x
    x = 7,136,270,134.45/82,107.78
  6. Step 6: Final answer
    x = 86,913.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.