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Finding the Fourth Proportional to 185,638.95, 256,182 and 100,755.99

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Solution

The fourth proportional to 185,638.95, 256,182 and 100,755.99 is: 139,043.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,638.95 : 256,182 = 100,755.99 : x
  2. Step 2: Convert to fraction form
    185,638.95/256,182 = 100,755.99/x
  3. Step 3: Cross multiply
    185,638.95x = 256,182 × 100,755.99
  4. Step 4: Simplify right side
    185,638.95x = 25,811,871,030.18
  5. Step 5: Solve for x
    x = 25,811,871,030.18/185,638.95
  6. Step 6: Final answer
    x = 139,043.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.