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Finding the Fourth Proportional to 212,407.41, 318,610.71 and 62,752.82

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Solution

The fourth proportional to 212,407.41, 318,610.71 and 62,752.82 is: 94,129.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,407.41 : 318,610.71 = 62,752.82 : x
  2. Step 2: Convert to fraction form
    212,407.41/318,610.71 = 62,752.82/x
  3. Step 3: Cross multiply
    212,407.41x = 318,610.71 × 62,752.82
  4. Step 4: Simplify right side
    212,407.41x = 19,993,719,895.06
  5. Step 5: Solve for x
    x = 19,993,719,895.06/212,407.41
  6. Step 6: Final answer
    x = 94,129.11

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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.