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Finding the Fourth Proportional to 90,826.30, 127,260.50 and 90,826.30

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Solution

The fourth proportional to 90,826.30, 127,260.50 and 90,826.30 is: 127,260.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,826.30 : 127,260.50 = 90,826.30 : x
  2. Step 2: Convert to fraction form
    90,826.30/127,260.50 = 90,826.30/x
  3. Step 3: Cross multiply
    90,826.30x = 127,260.50 × 90,826.30
  4. Step 4: Simplify right side
    90,826.30x = 11,558,600,351.15
  5. Step 5: Solve for x
    x = 11,558,600,351.15/90,826.30
  6. Step 6: Final answer
    x = 127,260.50

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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.