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Finding the Fourth Proportional to 91,054.95, 125,655.35 and 50,769.20

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Solution

The fourth proportional to 91,054.95, 125,655.35 and 50,769.20 is: 70,061.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,054.95 : 125,655.35 = 50,769.20 : x
  2. Step 2: Convert to fraction form
    91,054.95/125,655.35 = 50,769.20/x
  3. Step 3: Cross multiply
    91,054.95x = 125,655.35 × 50,769.20
  4. Step 4: Simplify right side
    91,054.95x = 6,379,420,713.10
  5. Step 5: Solve for x
    x = 6,379,420,713.10/91,054.95
  6. Step 6: Final answer
    x = 70,061.22

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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.