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Finding the Fourth Proportional to 453,360.56, 680,065.20 and 137,793.68

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Solution

The fourth proportional to 453,360.56, 680,065.20 and 137,793.68 is: 206,697.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,360.56 : 680,065.20 = 137,793.68 : x
  2. Step 2: Convert to fraction form
    453,360.56/680,065.20 = 137,793.68/x
  3. Step 3: Cross multiply
    453,360.56x = 680,065.20 × 137,793.68
  4. Step 4: Simplify right side
    453,360.56x = 93,708,686,547.94
  5. Step 5: Solve for x
    x = 93,708,686,547.94/453,360.56
  6. Step 6: Final answer
    x = 206,697.92

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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.