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Finding the Fourth Proportional to 77,247, 106,607.24 and 43,263.32

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Solution

The fourth proportional to 77,247, 106,607.24 and 43,263.32 is: 59,706.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,247 : 106,607.24 = 43,263.32 : x
  2. Step 2: Convert to fraction form
    77,247/106,607.24 = 43,263.32/x
  3. Step 3: Cross multiply
    77,247x = 106,607.24 × 43,263.32
  4. Step 4: Simplify right side
    77,247x = 4,612,182,551.32
  5. Step 5: Solve for x
    x = 4,612,182,551.32/77,247
  6. Step 6: Final answer
    x = 59,706.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.