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Finding the Fourth Proportional to 56,754, 78,190.11 and 44,812.98

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Solution

The fourth proportional to 56,754, 78,190.11 and 44,812.98 is: 61,738.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,754 : 78,190.11 = 44,812.98 : x
  2. Step 2: Convert to fraction form
    56,754/78,190.11 = 44,812.98/x
  3. Step 3: Cross multiply
    56,754x = 78,190.11 × 44,812.98
  4. Step 4: Simplify right side
    56,754x = 3,503,931,835.63
  5. Step 5: Solve for x
    x = 3,503,931,835.63/56,754
  6. Step 6: Final answer
    x = 61,738.94

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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.