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Finding the Fourth Proportional to 105,891.58, 146,132.76 and 58,145.14

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Solution

The fourth proportional to 105,891.58, 146,132.76 and 58,145.14 is: 80,241.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,891.58 : 146,132.76 = 58,145.14 : x
  2. Step 2: Convert to fraction form
    105,891.58/146,132.76 = 58,145.14/x
  3. Step 3: Cross multiply
    105,891.58x = 146,132.76 × 58,145.14
  4. Step 4: Simplify right side
    105,891.58x = 8,496,909,788.79
  5. Step 5: Solve for x
    x = 8,496,909,788.79/105,891.58
  6. Step 6: Final answer
    x = 80,241.60

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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.