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Finding the Fourth Proportional to 114,776.64, 171,905.28 and 61,374.30

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Solution

The fourth proportional to 114,776.64, 171,905.28 and 61,374.30 is: 91,922.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,776.64 : 171,905.28 = 61,374.30 : x
  2. Step 2: Convert to fraction form
    114,776.64/171,905.28 = 61,374.30/x
  3. Step 3: Cross multiply
    114,776.64x = 171,905.28 × 61,374.30
  4. Step 4: Simplify right side
    114,776.64x = 10,550,566,226.30
  5. Step 5: Solve for x
    x = 10,550,566,226.30/114,776.64
  6. Step 6: Final answer
    x = 91,922.59

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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.