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Finding the Fourth Proportional to 496,672.40, 745,037.40 and 141,712.40

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Solution

The fourth proportional to 496,672.40, 745,037.40 and 141,712.40 is: 212,576.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,672.40 : 745,037.40 = 141,712.40 : x
  2. Step 2: Convert to fraction form
    496,672.40/745,037.40 = 141,712.40/x
  3. Step 3: Cross multiply
    496,672.40x = 745,037.40 × 141,712.40
  4. Step 4: Simplify right side
    496,672.40x = 105,581,038,043.76
  5. Step 5: Solve for x
    x = 105,581,038,043.76/496,672.40
  6. Step 6: Final answer
    x = 212,576.82

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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.