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Finding the Fourth Proportional to 70,909.63, 106,383.88 and 37,177.89

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Solution

The fourth proportional to 70,909.63, 106,383.88 and 37,177.89 is: 55,777.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,909.63 : 106,383.88 = 37,177.89 : x
  2. Step 2: Convert to fraction form
    70,909.63/106,383.88 = 37,177.89/x
  3. Step 3: Cross multiply
    70,909.63x = 106,383.88 × 37,177.89
  4. Step 4: Simplify right side
    70,909.63x = 3,955,127,835.95
  5. Step 5: Solve for x
    x = 3,955,127,835.95/70,909.63
  6. Step 6: Final answer
    x = 55,777.02

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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.