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Finding the Fourth Proportional to 91,861.65, 137,570.13 and 46,764.63

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Solution

The fourth proportional to 91,861.65, 137,570.13 and 46,764.63 is: 70,033.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,861.65 : 137,570.13 = 46,764.63 : x
  2. Step 2: Convert to fraction form
    91,861.65/137,570.13 = 46,764.63/x
  3. Step 3: Cross multiply
    91,861.65x = 137,570.13 × 46,764.63
  4. Step 4: Simplify right side
    91,861.65x = 6,433,416,228.50
  5. Step 5: Solve for x
    x = 6,433,416,228.50/91,861.65
  6. Step 6: Final answer
    x = 70,033.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.