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Finding the Fourth Proportional to 136,060.74, 187,766.08 and 74,809.52

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Solution

The fourth proportional to 136,060.74, 187,766.08 and 74,809.52 is: 103,238.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,060.74 : 187,766.08 = 74,809.52 : x
  2. Step 2: Convert to fraction form
    136,060.74/187,766.08 = 74,809.52/x
  3. Step 3: Cross multiply
    136,060.74x = 187,766.08 × 74,809.52
  4. Step 4: Simplify right side
    136,060.74x = 14,046,689,191.23
  5. Step 5: Solve for x
    x = 14,046,689,191.23/136,060.74
  6. Step 6: Final answer
    x = 103,238.37

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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.