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Finding the Fourth Proportional to 496,674.59, 745,019.03 and 141,688.65

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Solution

The fourth proportional to 496,674.59, 745,019.03 and 141,688.65 is: 212,535.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,674.59 : 745,019.03 = 141,688.65 : x
  2. Step 2: Convert to fraction form
    496,674.59/745,019.03 = 141,688.65/x
  3. Step 3: Cross multiply
    496,674.59x = 745,019.03 × 141,688.65
  4. Step 4: Simplify right side
    496,674.59x = 105,560,740,585.01
  5. Step 5: Solve for x
    x = 105,560,740,585.01/496,674.59
  6. Step 6: Final answer
    x = 212,535.01

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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.