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Finding the Fourth Proportional to 207,970.80, 312,006.60 and 60,226.80

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Solution

The fourth proportional to 207,970.80, 312,006.60 and 60,226.80 is: 90,354.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,970.80 : 312,006.60 = 60,226.80 : x
  2. Step 2: Convert to fraction form
    207,970.80/312,006.60 = 60,226.80/x
  3. Step 3: Cross multiply
    207,970.80x = 312,006.60 × 60,226.80
  4. Step 4: Simplify right side
    207,970.80x = 18,791,159,096.88
  5. Step 5: Solve for x
    x = 18,791,159,096.88/207,970.80
  6. Step 6: Final answer
    x = 90,354.80

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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.