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Finding the Fourth Proportional to 124,376.88, 171,644.72 and 70,671

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Solution

The fourth proportional to 124,376.88, 171,644.72 and 70,671 is: 97,528.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,376.88 : 171,644.72 = 70,671 : x
  2. Step 2: Convert to fraction form
    124,376.88/171,644.72 = 70,671/x
  3. Step 3: Cross multiply
    124,376.88x = 171,644.72 × 70,671
  4. Step 4: Simplify right side
    124,376.88x = 12,130,304,007.12
  5. Step 5: Solve for x
    x = 12,130,304,007.12/124,376.88
  6. Step 6: Final answer
    x = 97,528.61

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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.