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Finding the Fourth Proportional to 212,014.60, 318,023.52 and 62,257.48

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Solution

The fourth proportional to 212,014.60, 318,023.52 and 62,257.48 is: 93,386.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,014.60 : 318,023.52 = 62,257.48 : x
  2. Step 2: Convert to fraction form
    212,014.60/318,023.52 = 62,257.48/x
  3. Step 3: Cross multiply
    212,014.60x = 318,023.52 × 62,257.48
  4. Step 4: Simplify right side
    212,014.60x = 19,799,342,935.93
  5. Step 5: Solve for x
    x = 19,799,342,935.93/212,014.60
  6. Step 6: Final answer
    x = 93,386.70

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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.