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Finding the Fourth Proportional to 73,206.70, 109,810.05 and 60,740.80

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Solution

The fourth proportional to 73,206.70, 109,810.05 and 60,740.80 is: 91,111.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,206.70 : 109,810.05 = 60,740.80 : x
  2. Step 2: Convert to fraction form
    73,206.70/109,810.05 = 60,740.80/x
  3. Step 3: Cross multiply
    73,206.70x = 109,810.05 × 60,740.80
  4. Step 4: Simplify right side
    73,206.70x = 6,669,950,285.04
  5. Step 5: Solve for x
    x = 6,669,950,285.04/73,206.70
  6. Step 6: Final answer
    x = 91,111.20

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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.