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Finding the Fourth Proportional to 212,497.53, 318,780.89 and 62,752.96

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Solution

The fourth proportional to 212,497.53, 318,780.89 and 62,752.96 is: 94,139.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,497.53 : 318,780.89 = 62,752.96 : x
  2. Step 2: Convert to fraction form
    212,497.53/318,780.89 = 62,752.96/x
  3. Step 3: Cross multiply
    212,497.53x = 318,780.89 × 62,752.96
  4. Step 4: Simplify right side
    212,497.53x = 20,004,445,239.02
  5. Step 5: Solve for x
    x = 20,004,445,239.02/212,497.53
  6. Step 6: Final answer
    x = 94,139.66

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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.