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Finding the Fourth Proportional to 104,040, 143,559.80 and 63,182.88

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Solution

The fourth proportional to 104,040, 143,559.80 and 63,182.88 is: 87,183.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,040 : 143,559.80 = 63,182.88 : x
  2. Step 2: Convert to fraction form
    104,040/143,559.80 = 63,182.88/x
  3. Step 3: Cross multiply
    104,040x = 143,559.80 × 63,182.88
  4. Step 4: Simplify right side
    104,040x = 9,070,521,537.25
  5. Step 5: Solve for x
    x = 9,070,521,537.25/104,040
  6. Step 6: Final answer
    x = 87,183.02

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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.