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Finding the Fourth Proportional to 206,641.63, 309,854.76 and 73,502.56

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Solution

The fourth proportional to 206,641.63, 309,854.76 and 73,502.56 is: 110,215.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,641.63 : 309,854.76 = 73,502.56 : x
  2. Step 2: Convert to fraction form
    206,641.63/309,854.76 = 73,502.56/x
  3. Step 3: Cross multiply
    206,641.63x = 309,854.76 × 73,502.56
  4. Step 4: Simplify right side
    206,641.63x = 22,775,118,088.19
  5. Step 5: Solve for x
    x = 22,775,118,088.19/206,641.63
  6. Step 6: Final answer
    x = 110,215.54

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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.