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Finding the Fourth Proportional to 91,295.76, 125,986.77 and 51,010.08

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Solution

The fourth proportional to 91,295.76, 125,986.77 and 51,010.08 is: 70,393.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,295.76 : 125,986.77 = 51,010.08 : x
  2. Step 2: Convert to fraction form
    91,295.76/125,986.77 = 51,010.08/x
  3. Step 3: Cross multiply
    91,295.76x = 125,986.77 × 51,010.08
  4. Step 4: Simplify right side
    91,295.76x = 6,426,595,216.64
  5. Step 5: Solve for x
    x = 6,426,595,216.64/91,295.76
  6. Step 6: Final answer
    x = 70,393.14

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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.