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Finding the Fourth Proportional to 76,195.67, 105,153.82 and 45,980.48

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Solution

The fourth proportional to 76,195.67, 105,153.82 and 45,980.48 is: 63,455.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,195.67 : 105,153.82 = 45,980.48 : x
  2. Step 2: Convert to fraction form
    76,195.67/105,153.82 = 45,980.48/x
  3. Step 3: Cross multiply
    76,195.67x = 105,153.82 × 45,980.48
  4. Step 4: Simplify right side
    76,195.67x = 4,835,023,265.37
  5. Step 5: Solve for x
    x = 4,835,023,265.37/76,195.67
  6. Step 6: Final answer
    x = 63,455.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.