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Finding the Fourth Proportional to 146,017.20, 219,025.80 and 52,510.80

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Solution

The fourth proportional to 146,017.20, 219,025.80 and 52,510.80 is: 78,766.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,017.20 : 219,025.80 = 52,510.80 : x
  2. Step 2: Convert to fraction form
    146,017.20/219,025.80 = 52,510.80/x
  3. Step 3: Cross multiply
    146,017.20x = 219,025.80 × 52,510.80
  4. Step 4: Simplify right side
    146,017.20x = 11,501,219,978.64
  5. Step 5: Solve for x
    x = 11,501,219,978.64/146,017.20
  6. Step 6: Final answer
    x = 78,766.20

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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.