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Finding the Fourth Proportional to 200,903.20, 301,354.80 and 60,643.60

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Solution

The fourth proportional to 200,903.20, 301,354.80 and 60,643.60 is: 90,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,903.20 : 301,354.80 = 60,643.60 : x
  2. Step 2: Convert to fraction form
    200,903.20/301,354.80 = 60,643.60/x
  3. Step 3: Cross multiply
    200,903.20x = 301,354.80 × 60,643.60
  4. Step 4: Simplify right side
    200,903.20x = 18,275,239,949.28
  5. Step 5: Solve for x
    x = 18,275,239,949.28/200,903.20
  6. Step 6: Final answer
    x = 90,965.40

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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.