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Finding the Fourth Proportional to 49,909.60, 74,950.80 and 48,354.40

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Solution

The fourth proportional to 49,909.60, 74,950.80 and 48,354.40 is: 72,615.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,909.60 : 74,950.80 = 48,354.40 : x
  2. Step 2: Convert to fraction form
    49,909.60/74,950.80 = 48,354.40/x
  3. Step 3: Cross multiply
    49,909.60x = 74,950.80 × 48,354.40
  4. Step 4: Simplify right side
    49,909.60x = 3,624,200,963.52
  5. Step 5: Solve for x
    x = 3,624,200,963.52/49,909.60
  6. Step 6: Final answer
    x = 72,615.31

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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.