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Finding the Fourth Proportional to 70,854.88, 106,189.92 and 35,775.52

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Solution

The fourth proportional to 70,854.88, 106,189.92 and 35,775.52 is: 53,616.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,854.88 : 106,189.92 = 35,775.52 : x
  2. Step 2: Convert to fraction form
    70,854.88/106,189.92 = 35,775.52/x
  3. Step 3: Cross multiply
    70,854.88x = 106,189.92 × 35,775.52
  4. Step 4: Simplify right side
    70,854.88x = 3,798,999,606.76
  5. Step 5: Solve for x
    x = 3,798,999,606.76/70,854.88
  6. Step 6: Final answer
    x = 53,616.63

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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.