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Finding the Fourth Proportional to 80,087.88, 110,502.93 and 47,816.25

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Solution

The fourth proportional to 80,087.88, 110,502.93 and 47,816.25 is: 65,975.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,087.88 : 110,502.93 = 47,816.25 : x
  2. Step 2: Convert to fraction form
    80,087.88/110,502.93 = 47,816.25/x
  3. Step 3: Cross multiply
    80,087.88x = 110,502.93 × 47,816.25
  4. Step 4: Simplify right side
    80,087.88x = 5,283,835,726.61
  5. Step 5: Solve for x
    x = 5,283,835,726.61/80,087.88
  6. Step 6: Final answer
    x = 65,975.47

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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.