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Finding the Fourth Proportional to 117,438.82, 176,071.95 and 37,430.75

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Solution

The fourth proportional to 117,438.82, 176,071.95 and 37,430.75 is: 56,118.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,438.82 : 176,071.95 = 37,430.75 : x
  2. Step 2: Convert to fraction form
    117,438.82/176,071.95 = 37,430.75/x
  3. Step 3: Cross multiply
    117,438.82x = 176,071.95 × 37,430.75
  4. Step 4: Simplify right side
    117,438.82x = 6,590,505,582.64
  5. Step 5: Solve for x
    x = 6,590,505,582.64/117,438.82
  6. Step 6: Final answer
    x = 56,118.63

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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.