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Finding the Fourth Proportional to 117,374.72, 175,974.52 and 70,616.64

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Solution

The fourth proportional to 117,374.72, 175,974.52 and 70,616.64 is: 105,872.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,374.72 : 175,974.52 = 70,616.64 : x
  2. Step 2: Convert to fraction form
    117,374.72/175,974.52 = 70,616.64/x
  3. Step 3: Cross multiply
    117,374.72x = 175,974.52 × 70,616.64
  4. Step 4: Simplify right side
    117,374.72x = 12,426,729,328.01
  5. Step 5: Solve for x
    x = 12,426,729,328.01/117,374.72
  6. Step 6: Final answer
    x = 105,872.28

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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.