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Finding the Fourth Proportional to 77,517.94, 106,975.88 and 43,533.79

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Solution

The fourth proportional to 77,517.94, 106,975.88 and 43,533.79 is: 60,077.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,517.94 : 106,975.88 = 43,533.79 : x
  2. Step 2: Convert to fraction form
    77,517.94/106,975.88 = 43,533.79/x
  3. Step 3: Cross multiply
    77,517.94x = 106,975.88 × 43,533.79
  4. Step 4: Simplify right side
    77,517.94x = 4,657,065,494.99
  5. Step 5: Solve for x
    x = 4,657,065,494.99/77,517.94
  6. Step 6: Final answer
    x = 60,077.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.