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Finding the Fourth Proportional to 123,752.40, 185,628.60 and 92,648.40

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Solution

The fourth proportional to 123,752.40, 185,628.60 and 92,648.40 is: 138,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,752.40 : 185,628.60 = 92,648.40 : x
  2. Step 2: Convert to fraction form
    123,752.40/185,628.60 = 92,648.40/x
  3. Step 3: Cross multiply
    123,752.40x = 185,628.60 × 92,648.40
  4. Step 4: Simplify right side
    123,752.40x = 17,198,192,784.24
  5. Step 5: Solve for x
    x = 17,198,192,784.24/123,752.40
  6. Step 6: Final answer
    x = 138,972.60

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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.