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Finding the Fourth Proportional to 212,424.56, 318,606.08 and 62,657.45

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Solution

The fourth proportional to 212,424.56, 318,606.08 and 62,657.45 is: 93,977.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,424.56 : 318,606.08 = 62,657.45 : x
  2. Step 2: Convert to fraction form
    212,424.56/318,606.08 = 62,657.45/x
  3. Step 3: Cross multiply
    212,424.56x = 318,606.08 × 62,657.45
  4. Step 4: Simplify right side
    212,424.56x = 19,963,044,527.30
  5. Step 5: Solve for x
    x = 19,963,044,527.30/212,424.56
  6. Step 6: Final answer
    x = 93,977.10

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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.