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Finding the Fourth Proportional to 2,742,726.80, 4,107,091.80 and 2,182,854.80

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Solution

The fourth proportional to 2,742,726.80, 4,107,091.80 and 2,182,854.80 is: 3,268,712.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742,726.80 : 4,107,091.80 = 2,182,854.80 : x
  2. Step 2: Convert to fraction form
    2,742,726.80/4,107,091.80 = 2,182,854.80/x
  3. Step 3: Cross multiply
    2,742,726.80x = 4,107,091.80 × 2,182,854.80
  4. Step 4: Simplify right side
    2,742,726.80x = 8,965,185,049,670.64
  5. Step 5: Solve for x
    x = 8,965,185,049,670.64/2,742,726.80
  6. Step 6: Final answer
    x = 3,268,712.38

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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.