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Finding the Fourth Proportional to 104,750.65, 144,555.63 and 57,003.98

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Solution

The fourth proportional to 104,750.65, 144,555.63 and 57,003.98 is: 78,665.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,750.65 : 144,555.63 = 57,003.98 : x
  2. Step 2: Convert to fraction form
    104,750.65/144,555.63 = 57,003.98/x
  3. Step 3: Cross multiply
    104,750.65x = 144,555.63 × 57,003.98
  4. Step 4: Simplify right side
    104,750.65x = 8,240,246,389.03
  5. Step 5: Solve for x
    x = 8,240,246,389.03/104,750.65
  6. Step 6: Final answer
    x = 78,665.35

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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.