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Finding the Fourth Proportional to 77,798.45, 116,703.81 and 38,334.05

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Solution

The fourth proportional to 77,798.45, 116,703.81 and 38,334.05 is: 57,504.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,798.45 : 116,703.81 = 38,334.05 : x
  2. Step 2: Convert to fraction form
    77,798.45/116,703.81 = 38,334.05/x
  3. Step 3: Cross multiply
    77,798.45x = 116,703.81 × 38,334.05
  4. Step 4: Simplify right side
    77,798.45x = 4,473,729,687.73
  5. Step 5: Solve for x
    x = 4,473,729,687.73/77,798.45
  6. Step 6: Final answer
    x = 57,504.10

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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.