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Finding the Fourth Proportional to 79,025.01, 109,051.04 and 45,040.86

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Solution

The fourth proportional to 79,025.01, 109,051.04 and 45,040.86 is: 62,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,025.01 : 109,051.04 = 45,040.86 : x
  2. Step 2: Convert to fraction form
    79,025.01/109,051.04 = 45,040.86/x
  3. Step 3: Cross multiply
    79,025.01x = 109,051.04 × 45,040.86
  4. Step 4: Simplify right side
    79,025.01x = 4,911,752,400.29
  5. Step 5: Solve for x
    x = 4,911,752,400.29/79,025.01
  6. Step 6: Final answer
    x = 62,154.40

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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.