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Finding the Fourth Proportional to 76,104.96, 105,052.71 and 45,891.55

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Solution

The fourth proportional to 76,104.96, 105,052.71 and 45,891.55 is: 63,347.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,104.96 : 105,052.71 = 45,891.55 : x
  2. Step 2: Convert to fraction form
    76,104.96/105,052.71 = 45,891.55/x
  3. Step 3: Cross multiply
    76,104.96x = 105,052.71 × 45,891.55
  4. Step 4: Simplify right side
    76,104.96x = 4,821,031,693.60
  5. Step 5: Solve for x
    x = 4,821,031,693.60/76,104.96
  6. Step 6: Final answer
    x = 63,347.14

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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.