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Finding the Fourth Proportional to 49,101.60, 73,652.40 and 28,106.40

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Solution

The fourth proportional to 49,101.60, 73,652.40 and 28,106.40 is: 42,159.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,101.60 : 73,652.40 = 28,106.40 : x
  2. Step 2: Convert to fraction form
    49,101.60/73,652.40 = 28,106.40/x
  3. Step 3: Cross multiply
    49,101.60x = 73,652.40 × 28,106.40
  4. Step 4: Simplify right side
    49,101.60x = 2,070,103,815.36
  5. Step 5: Solve for x
    x = 2,070,103,815.36/49,101.60
  6. Step 6: Final answer
    x = 42,159.60

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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.