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Finding the Fourth Proportional to 496,671.40, 745,035.90 and 141,711.40

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Solution

The fourth proportional to 496,671.40, 745,035.90 and 141,711.40 is: 212,575.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,671.40 : 745,035.90 = 141,711.40 : x
  2. Step 2: Convert to fraction form
    496,671.40/745,035.90 = 141,711.40/x
  3. Step 3: Cross multiply
    496,671.40x = 745,035.90 × 141,711.40
  4. Step 4: Simplify right side
    496,671.40x = 105,580,080,439.26
  5. Step 5: Solve for x
    x = 105,580,080,439.26/496,671.40
  6. Step 6: Final answer
    x = 212,575.32

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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.