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Finding the Fourth Proportional to 103,590.28, 155,394.06 and 44,411.68

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Solution

The fourth proportional to 103,590.28, 155,394.06 and 44,411.68 is: 66,621.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,590.28 : 155,394.06 = 44,411.68 : x
  2. Step 2: Convert to fraction form
    103,590.28/155,394.06 = 44,411.68/x
  3. Step 3: Cross multiply
    103,590.28x = 155,394.06 × 44,411.68
  4. Step 4: Simplify right side
    103,590.28x = 6,901,311,266.62
  5. Step 5: Solve for x
    x = 6,901,311,266.62/103,590.28
  6. Step 6: Final answer
    x = 66,621.22

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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.