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Finding the Fourth Proportional to 212,433.95, 318,541.17 and 62,655.17

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Solution

The fourth proportional to 212,433.95, 318,541.17 and 62,655.17 is: 93,950.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,433.95 : 318,541.17 = 62,655.17 : x
  2. Step 2: Convert to fraction form
    212,433.95/318,541.17 = 62,655.17/x
  3. Step 3: Cross multiply
    212,433.95x = 318,541.17 × 62,655.17
  4. Step 4: Simplify right side
    212,433.95x = 19,958,251,158.35
  5. Step 5: Solve for x
    x = 19,958,251,158.35/212,433.95
  6. Step 6: Final answer
    x = 93,950.38

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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.