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Finding the Fourth Proportional to 212,510.76, 318,715.08 and 62,710.56

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Solution

The fourth proportional to 212,510.76, 318,715.08 and 62,710.56 is: 94,050.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,510.76 : 318,715.08 = 62,710.56 : x
  2. Step 2: Convert to fraction form
    212,510.76/318,715.08 = 62,710.56/x
  3. Step 3: Cross multiply
    212,510.76x = 318,715.08 × 62,710.56
  4. Step 4: Simplify right side
    212,510.76x = 19,986,801,147.24
  5. Step 5: Solve for x
    x = 19,986,801,147.24/212,510.76
  6. Step 6: Final answer
    x = 94,050.77

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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.