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Finding the Fourth Proportional to 76,146.56, 114,012.48 and 59,220.80

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Solution

The fourth proportional to 76,146.56, 114,012.48 and 59,220.80 is: 88,669.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,146.56 : 114,012.48 = 59,220.80 : x
  2. Step 2: Convert to fraction form
    76,146.56/114,012.48 = 59,220.80/x
  3. Step 3: Cross multiply
    76,146.56x = 114,012.48 × 59,220.80
  4. Step 4: Simplify right side
    76,146.56x = 6,751,910,275.58
  5. Step 5: Solve for x
    x = 6,751,910,275.58/76,146.56
  6. Step 6: Final answer
    x = 88,669.93

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1.5x scale

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.