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Finding the Fourth Proportional to 49,620.40, 74,315.40 and 48,468.40

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Solution

The fourth proportional to 49,620.40, 74,315.40 and 48,468.40 is: 72,590.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,620.40 : 74,315.40 = 48,468.40 : x
  2. Step 2: Convert to fraction form
    49,620.40/74,315.40 = 48,468.40/x
  3. Step 3: Cross multiply
    49,620.40x = 74,315.40 × 48,468.40
  4. Step 4: Simplify right side
    49,620.40x = 3,601,948,533.36
  5. Step 5: Solve for x
    x = 3,601,948,533.36/49,620.40
  6. Step 6: Final answer
    x = 72,590.07

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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.