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Finding the Fourth Proportional to 163,856.80, 230,021.60 and 163,856.80

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Solution

The fourth proportional to 163,856.80, 230,021.60 and 163,856.80 is: 230,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,856.80 : 230,021.60 = 163,856.80 : x
  2. Step 2: Convert to fraction form
    163,856.80/230,021.60 = 163,856.80/x
  3. Step 3: Cross multiply
    163,856.80x = 230,021.60 × 163,856.80
  4. Step 4: Simplify right side
    163,856.80x = 37,690,603,306.88
  5. Step 5: Solve for x
    x = 37,690,603,306.88/163,856.80
  6. Step 6: Final answer
    x = 230,021.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.