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Finding the Fourth Proportional to 104,250.66, 143,865.84 and 56,503.98

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Solution

The fourth proportional to 104,250.66, 143,865.84 and 56,503.98 is: 77,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,250.66 : 143,865.84 = 56,503.98 : x
  2. Step 2: Convert to fraction form
    104,250.66/143,865.84 = 56,503.98/x
  3. Step 3: Cross multiply
    104,250.66x = 143,865.84 × 56,503.98
  4. Step 4: Simplify right side
    104,250.66x = 8,128,992,546.04
  5. Step 5: Solve for x
    x = 8,128,992,546.04/104,250.66
  6. Step 6: Final answer
    x = 77,975.45

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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.