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Finding the Fourth Proportional to 102,875.74, 154,313.68 and 43,669.92

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Solution

The fourth proportional to 102,875.74, 154,313.68 and 43,669.92 is: 65,504.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,875.74 : 154,313.68 = 43,669.92 : x
  2. Step 2: Convert to fraction form
    102,875.74/154,313.68 = 43,669.92/x
  3. Step 3: Cross multiply
    102,875.74x = 154,313.68 × 43,669.92
  4. Step 4: Simplify right side
    102,875.74x = 6,738,866,060.51
  5. Step 5: Solve for x
    x = 6,738,866,060.51/102,875.74
  6. Step 6: Final answer
    x = 65,504.91

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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.