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Finding the Fourth Proportional to 201,703,497.80, 302,555,246.70 and 200,191,843.40

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Solution

The fourth proportional to 201,703,497.80, 302,555,246.70 and 200,191,843.40 is: 300,287,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,703,497.80 : 302,555,246.70 = 200,191,843.40 : x
  2. Step 2: Convert to fraction form
    201,703,497.80/302,555,246.70 = 200,191,843.40/x
  3. Step 3: Cross multiply
    201,703,497.80x = 302,555,246.70 × 200,191,843.40
  4. Step 4: Simplify right side
    201,703,497.80x = 60,569,092,567,214,768
  5. Step 5: Solve for x
    x = 60,569,092,567,214,768/201,703,497.80
  6. Step 6: Final answer
    x = 300,287,765.10

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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.