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Finding the Fourth Proportional to 187,765.66, 259,126.98 and 107,219.06

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Solution

The fourth proportional to 187,765.66, 259,126.98 and 107,219.06 is: 147,968.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,765.66 : 259,126.98 = 107,219.06 : x
  2. Step 2: Convert to fraction form
    187,765.66/259,126.98 = 107,219.06/x
  3. Step 3: Cross multiply
    187,765.66x = 259,126.98 × 107,219.06
  4. Step 4: Simplify right side
    187,765.66x = 27,783,351,216.24
  5. Step 5: Solve for x
    x = 27,783,351,216.24/187,765.66
  6. Step 6: Final answer
    x = 147,968.22

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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.