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Finding the Fourth Proportional to 187,969.95, 281,939.99 and 75,570.93

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Solution

The fourth proportional to 187,969.95, 281,939.99 and 75,570.93 is: 113,350.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,969.95 : 281,939.99 = 75,570.93 : x
  2. Step 2: Convert to fraction form
    187,969.95/281,939.99 = 75,570.93/x
  3. Step 3: Cross multiply
    187,969.95x = 281,939.99 × 75,570.93
  4. Step 4: Simplify right side
    187,969.95x = 21,306,466,870.64
  5. Step 5: Solve for x
    x = 21,306,466,870.64/187,969.95
  6. Step 6: Final answer
    x = 113,350.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.