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Finding the Fourth Proportional to 91,897.94, 126,846.66 and 53,667.80

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Solution

The fourth proportional to 91,897.94, 126,846.66 and 53,667.80 is: 74,077.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,897.94 : 126,846.66 = 53,667.80 : x
  2. Step 2: Convert to fraction form
    91,897.94/126,846.66 = 53,667.80/x
  3. Step 3: Cross multiply
    91,897.94x = 126,846.66 × 53,667.80
  4. Step 4: Simplify right side
    91,897.94x = 6,807,581,179.55
  5. Step 5: Solve for x
    x = 6,807,581,179.55/91,897.94
  6. Step 6: Final answer
    x = 74,077.63

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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.