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Finding the Fourth Proportional to 187,636.50, 258,939.18 and 102,754.98

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Solution

The fourth proportional to 187,636.50, 258,939.18 and 102,754.98 is: 141,802.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,636.50 : 258,939.18 = 102,754.98 : x
  2. Step 2: Convert to fraction form
    187,636.50/258,939.18 = 102,754.98/x
  3. Step 3: Cross multiply
    187,636.50x = 258,939.18 × 102,754.98
  4. Step 4: Simplify right side
    187,636.50x = 26,607,290,262.12
  5. Step 5: Solve for x
    x = 26,607,290,262.12/187,636.50
  6. Step 6: Final answer
    x = 141,802.32

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1.5x scale

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.