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Finding the Fourth Proportional to 136,201.71, 187,960.88 and 75,777.98

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Solution

The fourth proportional to 136,201.71, 187,960.88 and 75,777.98 is: 104,575.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,201.71 : 187,960.88 = 75,777.98 : x
  2. Step 2: Convert to fraction form
    136,201.71/187,960.88 = 75,777.98/x
  3. Step 3: Cross multiply
    136,201.71x = 187,960.88 × 75,777.98
  4. Step 4: Simplify right side
    136,201.71x = 14,243,294,486.73
  5. Step 5: Solve for x
    x = 14,243,294,486.73/136,201.71
  6. Step 6: Final answer
    x = 104,575.00

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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.