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Finding the Fourth Proportional to 124,787.88, 187,255.53 and 65,628.12

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Solution

The fourth proportional to 124,787.88, 187,255.53 and 65,628.12 is: 98,480.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,787.88 : 187,255.53 = 65,628.12 : x
  2. Step 2: Convert to fraction form
    124,787.88/187,255.53 = 65,628.12/x
  3. Step 3: Cross multiply
    124,787.88x = 187,255.53 × 65,628.12
  4. Step 4: Simplify right side
    124,787.88x = 12,289,228,393.50
  5. Step 5: Solve for x
    x = 12,289,228,393.50/124,787.88
  6. Step 6: Final answer
    x = 98,480.95

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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.