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Finding the Fourth Proportional to 117,295.66, 175,903.80 and 38,390.32

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Solution

The fourth proportional to 117,295.66, 175,903.80 and 38,390.32 is: 57,572.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,295.66 : 175,903.80 = 38,390.32 : x
  2. Step 2: Convert to fraction form
    117,295.66/175,903.80 = 38,390.32/x
  3. Step 3: Cross multiply
    117,295.66x = 175,903.80 × 38,390.32
  4. Step 4: Simplify right side
    117,295.66x = 6,753,003,171.22
  5. Step 5: Solve for x
    x = 6,753,003,171.22/117,295.66
  6. Step 6: Final answer
    x = 57,572.49

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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.