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Finding the Fourth Proportional to 91,702.86, 126,503.37 and 59,890.38

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Solution

The fourth proportional to 91,702.86, 126,503.37 and 59,890.38 is: 82,618.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,702.86 : 126,503.37 = 59,890.38 : x
  2. Step 2: Convert to fraction form
    91,702.86/126,503.37 = 59,890.38/x
  3. Step 3: Cross multiply
    91,702.86x = 126,503.37 × 59,890.38
  4. Step 4: Simplify right side
    91,702.86x = 7,576,334,900.58
  5. Step 5: Solve for x
    x = 7,576,334,900.58/91,702.86
  6. Step 6: Final answer
    x = 82,618.31

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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.