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Finding the Fourth Proportional to 104,303.72, 143,942.03 and 58,988.51

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Solution

The fourth proportional to 104,303.72, 143,942.03 and 58,988.51 is: 81,405.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,303.72 : 143,942.03 = 58,988.51 : x
  2. Step 2: Convert to fraction form
    104,303.72/143,942.03 = 58,988.51/x
  3. Step 3: Cross multiply
    104,303.72x = 143,942.03 × 58,988.51
  4. Step 4: Simplify right side
    104,303.72x = 8,490,925,581.13
  5. Step 5: Solve for x
    x = 8,490,925,581.13/104,303.72
  6. Step 6: Final answer
    x = 81,405.78

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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.