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Finding the Fourth Proportional to 138,854.73, 208,282.10 and 33,673.70

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Solution

The fourth proportional to 138,854.73, 208,282.10 and 33,673.70 is: 50,510.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,854.73 : 208,282.10 = 33,673.70 : x
  2. Step 2: Convert to fraction form
    138,854.73/208,282.10 = 33,673.70/x
  3. Step 3: Cross multiply
    138,854.73x = 208,282.10 × 33,673.70
  4. Step 4: Simplify right side
    138,854.73x = 7,013,628,950.77
  5. Step 5: Solve for x
    x = 7,013,628,950.77/138,854.73
  6. Step 6: Final answer
    x = 50,510.55

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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.