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Finding the Fourth Proportional to 101,498.40, 152,028.90 and 84,002.40

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Solution

The fourth proportional to 101,498.40, 152,028.90 and 84,002.40 is: 125,822.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,498.40 : 152,028.90 = 84,002.40 : x
  2. Step 2: Convert to fraction form
    101,498.40/152,028.90 = 84,002.40/x
  3. Step 3: Cross multiply
    101,498.40x = 152,028.90 × 84,002.40
  4. Step 4: Simplify right side
    101,498.40x = 12,770,792,469.36
  5. Step 5: Solve for x
    x = 12,770,792,469.36/101,498.40
  6. Step 6: Final answer
    x = 125,822.60

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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.