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Finding the Fourth Proportional to 117,458.83, 176,064.64 and 74,796.69

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Solution

The fourth proportional to 117,458.83, 176,064.64 and 74,796.69 is: 112,116.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,458.83 : 176,064.64 = 74,796.69 : x
  2. Step 2: Convert to fraction form
    117,458.83/176,064.64 = 74,796.69/x
  3. Step 3: Cross multiply
    117,458.83x = 176,064.64 × 74,796.69
  4. Step 4: Simplify right side
    117,458.83x = 13,169,052,276.11
  5. Step 5: Solve for x
    x = 13,169,052,276.11/117,458.83
  6. Step 6: Final answer
    x = 112,116.32

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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.