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Finding the Fourth Proportional to 78,522, 108,361.44 and 44,988

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Solution

The fourth proportional to 78,522, 108,361.44 and 44,988 is: 62,084.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,522 : 108,361.44 = 44,988 : x
  2. Step 2: Convert to fraction form
    78,522/108,361.44 = 44,988/x
  3. Step 3: Cross multiply
    78,522x = 108,361.44 × 44,988
  4. Step 4: Simplify right side
    78,522x = 4,874,964,462.72
  5. Step 5: Solve for x
    x = 4,874,964,462.72/78,522
  6. Step 6: Final answer
    x = 62,084.06

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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.