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Finding the Fourth Proportional to 146,497.80, 219,746.70 and 72,616.20

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Solution

The fourth proportional to 146,497.80, 219,746.70 and 72,616.20 is: 108,924.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,497.80 : 219,746.70 = 72,616.20 : x
  2. Step 2: Convert to fraction form
    146,497.80/219,746.70 = 72,616.20/x
  3. Step 3: Cross multiply
    146,497.80x = 219,746.70 × 72,616.20
  4. Step 4: Simplify right side
    146,497.80x = 15,957,170,316.54
  5. Step 5: Solve for x
    x = 15,957,170,316.54/146,497.80
  6. Step 6: Final answer
    x = 108,924.30

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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.