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Finding the Fourth Proportional to 134,687.96, 185,870.70 and 74,260.76

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Solution

The fourth proportional to 134,687.96, 185,870.70 and 74,260.76 is: 102,480.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,687.96 : 185,870.70 = 74,260.76 : x
  2. Step 2: Convert to fraction form
    134,687.96/185,870.70 = 74,260.76/x
  3. Step 3: Cross multiply
    134,687.96x = 185,870.70 × 74,260.76
  4. Step 4: Simplify right side
    134,687.96x = 13,802,899,443.73
  5. Step 5: Solve for x
    x = 13,802,899,443.73/134,687.96
  6. Step 6: Final answer
    x = 102,480.57

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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.