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Finding the Fourth Proportional to 206,520.04, 309,783.48 and 56,759.40

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Solution

The fourth proportional to 206,520.04, 309,783.48 and 56,759.40 is: 85,140.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,520.04 : 309,783.48 = 56,759.40 : x
  2. Step 2: Convert to fraction form
    206,520.04/309,783.48 = 56,759.40/x
  3. Step 3: Cross multiply
    206,520.04x = 309,783.48 × 56,759.40
  4. Step 4: Simplify right side
    206,520.04x = 17,583,124,454.71
  5. Step 5: Solve for x
    x = 17,583,124,454.71/206,520.04
  6. Step 6: Final answer
    x = 85,140.04

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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.