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Finding the Fourth Proportional to 103,045.80, 154,568.70 and 50,557.80

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Solution

The fourth proportional to 103,045.80, 154,568.70 and 50,557.80 is: 75,836.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,045.80 : 154,568.70 = 50,557.80 : x
  2. Step 2: Convert to fraction form
    103,045.80/154,568.70 = 50,557.80/x
  3. Step 3: Cross multiply
    103,045.80x = 154,568.70 × 50,557.80
  4. Step 4: Simplify right side
    103,045.80x = 7,814,653,420.86
  5. Step 5: Solve for x
    x = 7,814,653,420.86/103,045.80
  6. Step 6: Final answer
    x = 75,836.70

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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.