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Finding the Fourth Proportional to 79,373.60, 119,036.64 and 31,973.48

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Solution

The fourth proportional to 79,373.60, 119,036.64 and 31,973.48 is: 47,950.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,373.60 : 119,036.64 = 31,973.48 : x
  2. Step 2: Convert to fraction form
    79,373.60/119,036.64 = 31,973.48/x
  3. Step 3: Cross multiply
    79,373.60x = 119,036.64 × 31,973.48
  4. Step 4: Simplify right side
    79,373.60x = 3,806,015,628.31
  5. Step 5: Solve for x
    x = 3,806,015,628.31/79,373.60
  6. Step 6: Final answer
    x = 47,950.65

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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.