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Finding the Fourth Proportional to 55,503.70, 83,012.55 and 49,623.10

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Solution

The fourth proportional to 55,503.70, 83,012.55 and 49,623.10 is: 74,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,503.70 : 83,012.55 = 49,623.10 : x
  2. Step 2: Convert to fraction form
    55,503.70/83,012.55 = 49,623.10/x
  3. Step 3: Cross multiply
    55,503.70x = 83,012.55 × 49,623.10
  4. Step 4: Simplify right side
    55,503.70x = 4,119,340,069.91
  5. Step 5: Solve for x
    x = 4,119,340,069.91/55,503.70
  6. Step 6: Final answer
    x = 74,217.40

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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.