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Finding the Fourth Proportional to 211,359.40, 317,010.30 and 63,615.40

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Solution

The fourth proportional to 211,359.40, 317,010.30 and 63,615.40 is: 95,414.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,359.40 : 317,010.30 = 63,615.40 : x
  2. Step 2: Convert to fraction form
    211,359.40/317,010.30 = 63,615.40/x
  3. Step 3: Cross multiply
    211,359.40x = 317,010.30 × 63,615.40
  4. Step 4: Simplify right side
    211,359.40x = 20,166,737,038.62
  5. Step 5: Solve for x
    x = 20,166,737,038.62/211,359.40
  6. Step 6: Final answer
    x = 95,414.43

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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.