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Finding the Fourth Proportional to 91,250.66, 125,913.47 and 50,959.29

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Solution

The fourth proportional to 91,250.66, 125,913.47 and 50,959.29 is: 70,316.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,250.66 : 125,913.47 = 50,959.29 : x
  2. Step 2: Convert to fraction form
    91,250.66/125,913.47 = 50,959.29/x
  3. Step 3: Cross multiply
    91,250.66x = 125,913.47 × 50,959.29
  4. Step 4: Simplify right side
    91,250.66x = 6,416,460,496.76
  5. Step 5: Solve for x
    x = 6,416,460,496.76/91,250.66
  6. Step 6: Final answer
    x = 70,316.86

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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.