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Finding the Fourth Proportional to 187,706.87, 258,827.90 and 119,615.98

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Solution

The fourth proportional to 187,706.87, 258,827.90 and 119,615.98 is: 164,937.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,706.87 : 258,827.90 = 119,615.98 : x
  2. Step 2: Convert to fraction form
    187,706.87/258,827.90 = 119,615.98/x
  3. Step 3: Cross multiply
    187,706.87x = 258,827.90 × 119,615.98
  4. Step 4: Simplify right side
    187,706.87x = 30,959,952,561.81
  5. Step 5: Solve for x
    x = 30,959,952,561.81/187,706.87
  6. Step 6: Final answer
    x = 164,937.77

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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.