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Finding the Fourth Proportional to 201,783.20, 302,545.20 and 83,501.60

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Solution

The fourth proportional to 201,783.20, 302,545.20 and 83,501.60 is: 125,198.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,783.20 : 302,545.20 = 83,501.60 : x
  2. Step 2: Convert to fraction form
    201,783.20/302,545.20 = 83,501.60/x
  3. Step 3: Cross multiply
    201,783.20x = 302,545.20 × 83,501.60
  4. Step 4: Simplify right side
    201,783.20x = 25,263,008,272.32
  5. Step 5: Solve for x
    x = 25,263,008,272.32/201,783.20
  6. Step 6: Final answer
    x = 125,198.77

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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.