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Finding the Fourth Proportional to 187,551.84, 258,821.64 and 102,668.88

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Solution

The fourth proportional to 187,551.84, 258,821.64 and 102,668.88 is: 141,683.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,551.84 : 258,821.64 = 102,668.88 : x
  2. Step 2: Convert to fraction form
    187,551.84/258,821.64 = 102,668.88/x
  3. Step 3: Cross multiply
    187,551.84x = 258,821.64 × 102,668.88
  4. Step 4: Simplify right side
    187,551.84x = 26,572,927,898.56
  5. Step 5: Solve for x
    x = 26,572,927,898.56/187,551.84
  6. Step 6: Final answer
    x = 141,683.11

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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.