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Finding the Fourth Proportional to 128,673.90, 193,049.88 and 62,101.62

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Solution

The fourth proportional to 128,673.90, 193,049.88 and 62,101.62 is: 93,171.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,673.90 : 193,049.88 = 62,101.62 : x
  2. Step 2: Convert to fraction form
    128,673.90/193,049.88 = 62,101.62/x
  3. Step 3: Cross multiply
    128,673.90x = 193,049.88 × 62,101.62
  4. Step 4: Simplify right side
    128,673.90x = 11,988,710,288.81
  5. Step 5: Solve for x
    x = 11,988,710,288.81/128,673.90
  6. Step 6: Final answer
    x = 93,171.27

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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.