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Finding the Fourth Proportional to 193,638.30, 290,419.05 and 93,798.30

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Solution

The fourth proportional to 193,638.30, 290,419.05 and 93,798.30 is: 140,678.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,638.30 : 290,419.05 = 93,798.30 : x
  2. Step 2: Convert to fraction form
    193,638.30/290,419.05 = 93,798.30/x
  3. Step 3: Cross multiply
    193,638.30x = 290,419.05 × 93,798.30
  4. Step 4: Simplify right side
    193,638.30x = 27,240,813,177.62
  5. Step 5: Solve for x
    x = 27,240,813,177.62/193,638.30
  6. Step 6: Final answer
    x = 140,678.85

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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.