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Finding the Fourth Proportional to 200,068.20, 299,446.20 and 155,453.40

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Solution

The fourth proportional to 200,068.20, 299,446.20 and 155,453.40 is: 232,670.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,068.20 : 299,446.20 = 155,453.40 : x
  2. Step 2: Convert to fraction form
    200,068.20/299,446.20 = 155,453.40/x
  3. Step 3: Cross multiply
    200,068.20x = 299,446.20 × 155,453.40
  4. Step 4: Simplify right side
    200,068.20x = 46,549,929,907.08
  5. Step 5: Solve for x
    x = 46,549,929,907.08/200,068.20
  6. Step 6: Final answer
    x = 232,670.31

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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.