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Finding the Fourth Proportional to 91,300.86, 125,992.82 and 51,014.93

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Solution

The fourth proportional to 91,300.86, 125,992.82 and 51,014.93 is: 70,399.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,300.86 : 125,992.82 = 51,014.93 : x
  2. Step 2: Convert to fraction form
    91,300.86/125,992.82 = 51,014.93/x
  3. Step 3: Cross multiply
    91,300.86x = 125,992.82 × 51,014.93
  4. Step 4: Simplify right side
    91,300.86x = 6,427,514,262.84
  5. Step 5: Solve for x
    x = 6,427,514,262.84/91,300.86
  6. Step 6: Final answer
    x = 70,399.27

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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.