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Finding the Fourth Proportional to 103,809.48, 155,730.99 and 43,846.97

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Solution

The fourth proportional to 103,809.48, 155,730.99 and 43,846.97 is: 65,777.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,809.48 : 155,730.99 = 43,846.97 : x
  2. Step 2: Convert to fraction form
    103,809.48/155,730.99 = 43,846.97/x
  3. Step 3: Cross multiply
    103,809.48x = 155,730.99 × 43,846.97
  4. Step 4: Simplify right side
    103,809.48x = 6,828,331,048.71
  5. Step 5: Solve for x
    x = 6,828,331,048.71/103,809.48
  6. Step 6: Final answer
    x = 65,777.53

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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.