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Finding the Fourth Proportional to 74,480.86, 102,777.46 and 43,849.08

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Solution

The fourth proportional to 74,480.86, 102,777.46 and 43,849.08 is: 60,508.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,480.86 : 102,777.46 = 43,849.08 : x
  2. Step 2: Convert to fraction form
    74,480.86/102,777.46 = 43,849.08/x
  3. Step 3: Cross multiply
    74,480.86x = 102,777.46 × 43,849.08
  4. Step 4: Simplify right side
    74,480.86x = 4,506,697,065.74
  5. Step 5: Solve for x
    x = 4,506,697,065.74/74,480.86
  6. Step 6: Final answer
    x = 60,508.12

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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.